procunier martinez argued december decided april appellees prison inmates brought class action challenging prisoner mail censorship regulations issued director california department corrections ban use law students legal paraprofessionals conduct interviews inmates mail censorship regulations inter alia proscribed inmate correspondence unduly complain ed magnif ied grievances express ed inflammatory political racial religious views beliefs contained matter deemed defamatory otherwise inappropriate district held regulations unconstitutional first amendment void vagueness violative fourteenth amendment guarantee procedural due process enjoined continued enforcement required inmate notified rejection correspondence author correspondence allowed protest decision secure review prison official original censor district also held ban use law students legal paraprofessionals conduct interviews inmates abridged right access courts enjoined continued enforcement appellants contend district abstained deciding constitutionality mail censorship regulations held district err refusing abstain deciding constitutionality mail censorship regulations pp censorship direct personal correspondence involves incidental restrictions right free speech prisoners correspondents justified following criteria met must one important substantial governmental interests security order rehabilitation inmates must greater necessary legitimate governmental interest involved pp standard invalidation mail censorship regulations district correct pp decision censor withhold delivery particular letter must accompanied minimum procedural safeguards arbitrariness error requirements specified district unduly burdensome pp ban interviews conducted law students legal paraprofessionals limited prospective interviewers posed colorable threat security inmates thought especially dangerous created arbitrary distinction law students employed attorneys associated law school programs ban operate constituted unjustifiable restriction inmates right access courts johnson avery pp powell delivered opinion burger brennan stewart white marshall blackmun rehnquist joined marshall filed concurring opinion brennan joined part ii douglas joined post douglas filed opinion concurring judgment post eric collins deputy attorney general california argued cause appellants briefs evelle younger attorney general edward hinz chief assistant attorney general doris maier assistant attorney general robert granucci thomas brady deputy attorneys general william bennett turner argued cause appellees brief mario obledo sanford jay rosen anthony amsterdam jack greenberg james nabrit iii stanley bass lowell johnston alice daniel briefs amici curiae urging affirmance filed william fry national paralegal institute sheldon krantz stephen joel trachtenberg center criminal justice boston university school law justice powell delivered opinion case concerns constitutionality certain regulations promulgated appellant procunier capacity director california department corrections appellees brought class action behalf inmates penal institutions department jurisdiction challenge rules relating censorship prisoner mail ban use law students legal paraprofessionals conduct interviews inmates pursuant district convened hear appellees request declaratory injunctive relief entered summary judgment enjoining continued enforcement rules question ordering appellants submit new regulations approval supp nd cal appellants first revisions resulted counterproposals appellees order issued may requiring modification proposed rules second set revised regulations approved district july appellees objections first proposed revisions department regulations pending district appellants brought appeal contest decision holding original regulations unconstitutional noted probable jurisdiction affirm first consider constitutionality director rules restricting personal correspondence prison inmates regulations correspondence inmates california penal institutions persons licensed attorneys holders public office censored nonconformity certain standards rule stated department general premise personal correspondence prisoners privilege right detailed regulations implemented department policy rule directed inmates write letters unduly complain magnify grievances rule defined contraband writings expressing inflammatory political racial religious views beliefs finally rule provided inmates may send receive letters pertain criminal activity lewd obscene defamatory contain foreign matter otherwise inappropriate prison employees screened incoming outgoing personal mail violations regulations criteria provided help members mailroom staff decide whether particular letter contravened prison rule policy prison employee found letter objectionable take one following actions refuse mail deliver letter return author submit disciplinary report lead suspension mail privileges sanctions place copy letter summary contents prisoner file might factor determining inmate work housing assignments setting date parole eligibility district held regulations relating prisoner mail authorized censorship protected expression without adequate justification violation first amendment void vagueness also noted regulations failed provide minimum procedural safeguards error arbitrariness censorship inmate correspondence consequently enjoined continued enforcement appellants contended district abstained deciding questions appellants advanced reason abstention assertion federal defer california courts basis comity district properly rejected suggestion noting mere possibility state might declare prison regulations unconstitutional ground abstention wisconsin constantineau appellants contend vacate judgment remand case district instructions abstain basis two arguments presented first contend vagueness challenge uninterpreted state statute regulation proper case abstention according appellants statement district regulations vague constitutes compelling reason abstention brief appellants made plain baggett bullitt however every vagueness challenge uninterpreted state statute regulation constitutes proper case abstention need decide whether appellants contention controlled analysis baggett short answer argument regulations neither challenged invalidated solely ground vagueness appellees also asserted district found rules relating prisoner mail permitted censorship constitutionally protected expression without adequate justification light successful first amendment attack regulations district conclusion also unconstitutionally vague hardly constitutes compelling reason abstention second ground abstention appellants rely cal penal code assures prisoners right receive books magazines periodicals although advance argument district appellants contend interpretation statute state courts application regulations governing prisoner mail might avoid modify constitutional questions decided thus appellants seek establish essential prerequisite abstention uncertain issue state law resolution may eliminate materially alter federal constitutional question harman forssenius persuaded state interpretation avoid substantially modify constitutional question presented statute contain provision purporting regulate censorship personal correspondence preserves right inmates receive newspapers periodicals books authorizes prison officials exclude obscene publications writings mail containing information concerning matter may obtained emphasis added plain meaning language reinforced recent legislative history bill introduced california legislature restrict censorship personal correspondence adding entirely new subsection legislature passed bill vetoed governor reagan light history think plain reasonable interpretation avoid modify federal constitutional question decided moreover mindful high cost abstention federal constitutional challenge concerns facial repugnance first amendment zwickler koota baggett bullitt therefore proceed merits traditionally federal courts adopted broad attitude toward problems prison administration part policy product various limitations scope federal review conditions state penal institutions fundamentally attitude springs complementary perceptions nature problems efficacy judicial intervention prison administrators responsible maintaining internal order discipline securing institutions unauthorized access escape rehabilitating extent human nature inadequate resources allow inmates placed custody herculean obstacles effective discharge duties apparent warrant explication suffice say problems prisons america complex intractable point readily susceptible resolution decree require expertise comprehensive planning commitment resources peculiarly within province legislative executive branches government reasons courts ill equipped deal increasingly urgent problems prison administration reform judicial recognition fact reflects healthy sense realism moreover state penal institutions involved federal courts reason deference appropriate prison authorities policy judicial restraint encompass failure take cognizance valid constitutional claims whether arising federal state institution prison regulation practice offends fundamental constitutional guarantee federal courts discharge duty protect constitutional rights johnson avery case although district found regulations relating prisoner mail deficient several respects first principal basis decision constitutional command first amendment applied fourteenth amendment issue us appropriate standard review prison regulations restricting freedom speech previously addressed question tension traditional policy judicial restraint regarding prisoner complaints need protect constitutional rights led federal courts adopt variety widely inconsistent approaches problem maintained posture face constitutional challenges censorship prisoner mail mccloskey maryland lee tahash except insofar mail censorship rules applied discriminate particular racial religious group krupnick crouse pope daggett another required censorship personal correspondence lack support rational constitutionally acceptable concept prison system sostre mcginnis cert denied sub nom oswald sostre extreme courts willing require demonstration compelling state interest justify censorship prisoner mail jackson godwin decided equal protection first amendment grounds morales schmidt supp wd fortune society mcginnis supp sdny courts phrase standard similarly demanding terms clear present danger wilkinson skinner various intermediate positions notably view regulation practice restricts right free expression prisoner enjoyed imprisoned must related reasonably necessarily advancement justifiable purpose carothers follette supp sdny citations omitted see also gates collier supp nd miss lemon zelker supp sdny array disparate approaches absence generally accepted standard testing constitutionality prisoner mail censorship regulations disserve competing interests stake one hand first amendment interests implicated censorship inmate correspondence given haphazard inconsistent protection uncertainty constitutional standard makes impossible correctional officials anticipate required invites repetitive piecemeal litigation behalf inmates result unnecessarily perpetuate involvement federal courts affairs prison administration task formulate standard review prisoner mail censorship responsive concerns begin analysis proper standard review constitutional challenges censorship prisoner mail somewhat different premise taken federal courts considered question part courts dealt challenges censorship prisoner mail involving broad questions prisoners rights case exception district stated issue general terms applicability first amendment rights prison inmates arguments parties reflect assumption resolution case requires assessment extent prisoners may claim first amendment freedoms view inquiry unnecessary determining proper standard review prison restrictions inmate correspondence occasion consider extent individual right free speech survives incarceration narrower basis decision hand case direct personal correspondence inmates particularized interest communicating mail censorship implicates right prisoners communication letter accomplished act writing words paper rather effected letter read addressee parties correspondence interest securing result censorship communication necessarily impinges interest whatever status prisoner claim uncensored correspondence outsider plain latter interest grounded first amendment guarantee freedom speech depend whether nonprisoner correspondent author intended recipient particular letter addressee well sender direct personal correspondence derives first fourteenth amendments protection unjustified governmental interference intended communication lamont postmaster general accord kleindienst mandel martin city struthers deal difficult questions right hear standing particular means communication interests parties inextricably meshed wife prison inmate permitted read husband wanted say suffered abridgment interest communicating plain results censorship letter either event censorship prisoner mail works consequential restriction first fourteenth amendments rights prisoners accordingly reject attempt justify censorship inmate correspondence merely reference certain assumptions legal status prisoners category argument falls appellants contention inmate rights reference social correspondence something fundamentally different enjoyed free brother brief appellants line argument undemanding standard review intended support fail recognize first amendment liberties free citizens implicated censorship prisoner mail therefore turn guidance cases involving questions prisoners rights decisions dealing general problem incidental restrictions first amendment liberties imposed furtherance legitimate governmental activities noted tinker des moines school district first amendment guarantees must applied light special characteristics environment tinker concerned interplay right freedom speech public high school students need affirming comprehensive authority school officials consistent fundamental constitutional safeguards prescribe control conduct schools overruling school regulation prohibiting wearing antiwar armbands undertook careful analysis legitimate requirements orderly school administration order ensure students afforded maximum freedom speech consistent requirements approach followed healy james considered refusal state college grant official recognition group students wished organize local chapter students democratic society sds national student organization noted political activism campus disruption found neither identification local student group national sds purportedly dangerous political philosophy local group college administration fear future unspecified disruptive activities students justify incursion right free association also found however right limited necessary prevent campus disruption remanded case determination whether students fact refused accept reasonable regulations governing student conduct dealt incidental restrictions free speech occasioned exercise governmental power conscript men military service burned selective service registration certificate steps courthouse order dramatize opposition draft country involvement vietnam convicted violating provision selective service law recently amended prohibit knowing destruction mutilation registration certificates argued purpose effect amendment abridge free expression statutory provision therefore unconstitutional enacted applied although activity involved conduct rather pure speech define away first amendment concern neither rule presence communicative intent necessarily rendered actions immune governmental regulation instead enunciated following test government regulation sufficiently justified within constitutional power government furthers important substantial governmental interest governmental interest unrelated suppression free expression incidental restriction alleged first amendment freedoms greater essential furtherance interest case hand arises context prisons one primary functions government preservation societal order enforcement criminal law maintenance penal institutions essential part task identifiable governmental interests stake task preservation internal order discipline maintenance institutional security escape unauthorized entry rehabilitation prisoners weight professional opinion seems inmate freedom correspond outsiders advances rather retards goal rehabilitation legitimate governmental interest order security penal institutions justifies imposition certain restraints inmate correspondence perhaps obvious example justifiable censorship prisoner mail refusal send deliver letters concerning escape plans containing information concerning proposed criminal activity whether within without prison similarly prison officials may properly refuse transmit encoded messages less obvious possibilities come mind purpose survey range circumstances particular restrictions prisoner mail might warranted legitimate demands prison administration exist time time various kinds penal institutions found country task determine proper standard deciding whether particular regulation practice relating inmate correspondence constitutes impermissible restraint first amendment liberties applying teachings prior decisions instant context hold censorship prisoner mail justified following criteria met first regulation practice question must important substantial governmental interest unrelated suppression expression prison officials may censor inmate correspondence simply eliminate unflattering unwelcome opinions factually inaccurate statements rather must show regulation authorizing mail censorship furthers one substantial governmental interests security order rehabilitation second limitation first amendment freedoms must greater necessary essential protection particular governmental interest involved thus restriction inmate correspondence furthers important substantial interest penal administration nevertheless invalid sweep unnecessarily broad mean course prison administrators may required show certainty adverse consequences flow failure censor particular letter latitude anticipating probable consequences allowing certain speech prison environment essential proper discharge administrator duty regulation practice restricts inmate correspondence must generally necessary protect one legitimate governmental interests identified basis standard affirm judgment district regulations invalidated authorized inter alia censorship statements unduly complain magnify grievances expression inflammatory political racial religious views matter deemed defamatory otherwise inappropriate regulations fairly invited prison officials employees apply personal prejudices opinions standards prisoner mail censorship surprisingly prison officials used extraordinary latitude discretion authorized regulations suppress unwelcome criticism example one institution department jurisdiction checklist used mailroom staff authorized rejection letters criticizing policy rules officials mailroom sergeant stated deposition reject defamatory letters belittling staff judicial system anything connected department corrections correspondence also censored disrespectful comments derogatory remarks like appellants failed show broad restrictions prisoner mail way necessary furtherance governmental interest unrelated suppression expression indeed heart appellants position regulations justified legitimate governmental interest need misconception stated affirmatively also underlies appellants discussion particular regulations attack example appellants sole defense prohibition matter defamatory otherwise inappropriate within discretion prison administrators brief appellants appellants contend statements magnify grievances unduly complain censored precaution flash riots furtherance inmate rehabilitation suggest magnification grievances undue complaining presumably occurs outgoing letters possibly lead flash riots specify contribution suppression complaints makes rehabilitation criminals appellants defend ban inflammatory political racial religious views ground uch matter clearly presents danger prison security regulation however narrowly drawn reach material might thought encourage violence application limited incoming letters short department regulations authorized censorship prisoner mail far broader legitimate interest penal administration demands properly found invalid district also agree district decision censor withhold delivery particular letter must accompanied minimum procedural safeguards interest prisoners correspondents uncensored communication letter grounded first amendment plainly liberty interest within meaning fourteenth amendment even though qualified necessity circumstance imprisonment protected arbitrary governmental invasion see board regents roth perry sindermann district required inmate notified rejection letter written addressed author letter given reasonable opportunity protest decision complaints referred prison official person originally disapproved correspondence requirements appear unduly burdensome appellants contend accordingly affirm judgment district respect department regulations relating prisoner mail ii district also enjoined continued enforcement administrative rule provides pertinent part investigators confined two investigators must licensed state must members state bar designation must made writing attorney constitutional guarantee due process law corollary requirement prisoners afforded access courts order challenge unlawful convictions seek redress violations constitutional rights means inmates must reasonable opportunity seek receive assistance attorneys regulations practices unjustifiably obstruct availability professional representation aspects right access courts invalid ex parte hull district found rule restricting interviews members bar licensed private investigators inhibited adequate professional representation indigent inmates remoteness many california penal institutions makes personal visit inmate client undertaking reasoned ban use law students paraprofessionals interviews deter lawyers representing prisoners afford pay traveling time licensed private investigators lawyers agreed waste time might employed efficaciously working inmates legal problems allowing law students paraprofessionals interview inmates might well reduce cost legal representation prisoners district therefore concluded regulation imposed substantial burden right access courts district recognized conclusion end inquiry prison administrators required adopt every proposal may thought facilitate prisoner access courts extent right burdened particular regulation practice must weighed legitimate interests penal administration proper regard judges give expertise discretionary authority correctional officials case ban use law students paraprofessional personnel absolute prohibition limited prospective interviewers posed colorable threat security inmates thought especially dangerous shown less restrictive regulation unduly burden administrative task screening monitoring visitors appellants enforcement regulation question also created arbitrary distinction law students employed practicing attorneys associated law school programs providing legal assistance prisoners department flatly prohibited interviews sort law students working attorneys freely allowed participants number law school programs enter prisons meet inmates largely unsupervised students admitted without security check verification enrollment school program course fact appellants allowed persons conduct interviews prisoners mean required admit others arbitrariness distinction two categories law students reveal absence real justification sweeping prohibition administrative rule say district erred invalidating regulation result mandated decision johnson avery struck prison regulation prohibiting inmate advising assisting another preparation legal documents given inadequacy alternative sources legal assistance rule effect denying illiterate poorly educated inmates opportunity vindicate possibly valid constitutional claims found regulation impermissibly burdened right access courts despite insignificant state interest preventing establishment personal power structures unscrupulous jailhouse lawyers attendant problems prison discipline follow countervailing state interest johnson anything persuasive interest advanced appellants instant case judgment affirmed footnotes director rule provided inmate behavior always conduct orderly manner fight take part horseplay physical encounters except part regular athletic program agitate unduly complain magnify grievances behave way might lead violence undisputed phrases unduly complain magnify grievances applied personal correspondence director rule provided following contraband writings voice recordings expressing inflammatory political racial religious views beliefs immediate possession originator originator possession used subvert prison discipline display circulation rule also provides writings defined contraband rule circulated among inmates judgment warden superintendent tend subvert prison order discipline may placed inmate property shall access supervision time appellees amended complaint rule included prohibitions prison gossip discussion inmates first opinion district provisions deleted phrase contain foreign matter substituted stead baggett considered constitutionality loyalty oaths required certain state employees condition employment purpose applying doctrine abstention distinguished two kinds vagueness attacks case turns applicability state statute regulation particular person defined course conduct resolution unsettled question state law may eliminate need constitutional adjudication abstention therefore appropriate however case statute regulation challenged vague individuals plainly applies simply understand required wish forswear activity arguably within scope vague terms abstention required case single adjudication state eliminate constitutional difficulty rather require extensive adjudications impact variety factual situations bring challenged statute regulation within bounds permissible constitutional certainty ibid cal penal code provides sentence imprisonment state prison term suspends civil rights person sentenced allows partial restoration rights california adult authority statute declares pertinent part section shall construed deprive person following civil rights accordance laws state purchase receive read newspapers periodicals books accepted distribution post office pursuant provisions section prison authorities shall authority exclude obscene publications writings mail containing information concerning matter may obtained matter character tending incite murder arson riot violent racism form violence matter concerning gambling lottery appellants argue correctness abstention argument demonstrated district disposition count ii appellees amended complaint count ii appellees challenged mail regulations ground application correspondence inmates attorneys contravened sixth fourteenth amendments appellees later discovered case pending california application prison rules mail attacked subsection provides section shall construed deprive inmate following civil rights accordance laws state correspond confidentially member state bar holder public office provided prison authorities may open inspect mail search contraband district stay hand subsequent decision jordan cal holding barred censorship correspondence rendered count ii moot disposition claim relating mail however quite irrelevant appellants contention district abstained deciding whether mail regulations constitutional apply personal mail subsection speaks directly issue censorship mail says nothing personal correspondence appellants informed us challenge censorship personal mail presently pending state courts see note decency fairness emerging judicial role prison reform rev also ill suited act agencies consideration resolution infinite variety prisoner complaints moreover capacity criminal justice system deal fairly fully legitimate claims impaired burgeoning increase frivolous prisoner complaints one means alleviating problem chief justice suggested federal state authorities explore possibility instituting internal administrative procedures disposition inmate grievances third circuit judicial conference meeting october problem addressed suggestions also included abstention appropriate avoid needless consideration federal constitutional issues ii use federal magistrates sent penal institutions conduct hearings make findings fact emphasize express view merit validity particular proposal think appropriate indicate necessity prompt thoughtful consideration responsible federal state authorities worsening situation specifically district held regulations authorized restraint lawful expression violation first fourteenth amendments fatally vague failed provide minimum procedural safeguards arbitrary erroneous censorship protected speech different considerations may come play case mass mailings issue raised facts intimate view proper resolution need address case validity temporary prohibition inmate personal correspondence disciplinary sanction usually part regimen solitary confinement violation prison rules policy statement federal bureau prisons sets forth bureau position regarding general correspondence prisoners entrusted custody authorizes federal institutions adopt open correspondence regulations recognizes need restrictions arises primarily considerations order security rather rehabilitation constructive wholesome contact community valuable therapeutic tool overall correctional process time basic controls need exercised order protect security institution individuals recommended policy guideline adopted association state correctional administrators august echoes view personal correspondence prison inmates generally wholesome activity correspondence members inmate family close friends associates organizations beneficial morale confined persons may form basis good adjustment institution community necessarily controlling policies followed institutions relevant determination need particular type restriction example policy statement federal bureau prisons specifies personal correspondence inmates federal prisons whether incoming outgoing may rejected inclusion following kinds material material might violate postal regulations threats blackmail contraband indicate plots escape discussions criminal activities inmate may permitted direct business confinement go point prohibiting correspondence necessary enable inmate protect property funds legitimately time committed institution thus inmate correspond refinancing mortgage home sign insurance papers operate mortgage insurance business institution letters containing codes obvious attempts circumvent regulations subject rejection insofar possible letters written english every effort made accommodate inmates unable write english whose correspondents unable understand letter written english criminal sophistication inmate relationship inmate correspondent factors considered deciding whether correspondence foreign language permitted district held original regulations unconstitutional revised regulations developed appellants approved supp app although regulations us review indicative one solution problem following provisions govern censorship prisoner correspondence correspondence criteria disapproval inmate mail outgoing letters outgoing letters inmates institutions requiring approval inmate correspondents may disapproved mailing content falls whole significant part following categories letter contains threats physical harm person threats criminal activity letter threatens blackmail extortion letter concerns sending contraband institutions letter concerns plans escape letter concerns plans activities violation institutional rules letter concerns plans criminal activity letter code contents understood reader letter solicits gifts goods money family letter obscene letter contains information communicated create clear present danger violence physical harm human outgoing letters inmates institutions requiring approval correspondents may disapproved foregoing reasons addressee approved correspondent inmate special permission letter obtained incoming letters incoming letters inmates may disapproved receipt foregoing reasons letter contains material cause severe psychiatric emotional disturbance inmate institution requiring approval inmate correspondents person approved correspondent special permission letter obtained limitations disapproval letter basis cause severe psychiatric emotional disturbance inmate may done member institution psychiatric staff consultation inmate caseworker staff member may disapprove letter upon finding receipt letter likely affect prison discipline security inmate rehabilitation reasonable alternative means ameliorating disturbance inmate outgoing incoming letters may rejected solely upon ground contain criticism institution personnel notice disapproval inmate mail inmate prohibited sending letter letter written signed notice stating one authorized reasons disapproval indicating portion portions letter causing disapproval given inmate inmate prohibited receiving letter letter written signed notice stating one authorized reasons disapproval indicating portion portions letter causing disapproval given sender inmate given notice writing letter rejected indicating one authorized reasons sender name material correspondence violates provisions paragraph one may placed inmate file material correspondence may placed inmate file unless lawfully observed employee department relevant assessment inmate rehabilitation however material violation provisions paragraph one may subject disciplinary proceedings inmate inmate shall notified writing placing material correspondence file administrative review inmate grievances regarding application rule may accordance paragraph rules apparently department policy regarding law school programs providing legal assistance inmates though well established embodied regulation justice marshall justice brennan joins concurring concur opinion judgment write separately emphasize view prison authorities general right open read incoming outgoing prisoner mail although issue first amendment rights inmates explicitly reserved reach issue hold prison authorities may read inmate mail matter course ii justice holmes observed half century ago use mails almost much part free speech right use tongues milwaukee social democratic publishing burleson dissenting opinion quoted approval blount rizzi see also lamont postmaster general prisoner shed basic first amendment rights prison gate rather retains rights ordinary citizen except expressly necessary implication taken law coffin reichard accordingly prisoners view entitled use mails medium free expression privilege rather constitutionally guaranteed right seems clear freedom may seriously infringed permitting correctional authorities read prisoner correspondence prisoner free open expression surely restrained knowledge every word may read jailors message well find way disciplinary file object ridicule even lead reprisals similar pall may cast free expression inmates correspondents cf talley california naacp alabama intrusion first amendment freedoms justified substantial government interest showing means chosen effectuate state purpose unnecessarily restrictive personal freedoms ven though governmental purpose legitimate substantial purpose pursued means broadly stifle fundamental personal liberties end narrowly achieved shelton tucker state asserts number justifications general right read prisoner correspondence state argues contraband weapons narcotics may smuggled prison via mail certainly legitimate concern prison authorities argument provides justification reading outgoing mail even incoming mail showing stemming traffic contraband accomplished equally well means physical tests fluoroscoping letters physical tests inadequate merely opening inspecting reading incoming mail clearly suffice also suggested prison authorities must read prison mail order detect escape plans state surely justify reading everyone mail listening phone conversations chance criminal schemes concocted similarly reading prisoner mail great intrusion first amendment rights justified speculative concern showing seriousness problem escapes planned arranged via mail indeed state claim concern problem undermined general practice permitting unmonitored personal interviews number surreptitious plans might discussed undetected prison authorities reason believe escape plot hatched particular inmate correspondence may well adequate basis seize inmate letters justification blanket policy reading prison mail also occasionally asserted reading prisoner mail useful tool rehabilitative process therapeutic model corrections come increasing criticism penal institutions rehabilitative programs ideal reality assuming validity rehabilitative model however state demonstrate reading inmate mail attendant chilling effect free expression serves valid rehabilitative purpose prison walls serve merely restrain offenders also isolate mails provide one ties inmates retain communities families ties essential success later return outside world judge kaufman writing second circuit found two observations particularly apropos similar claims rehabilitative benefit sostre mcginnis en banc letter writing keeps inmate contact outside world helps hold check morbidity hopelessness produced prison life isolation stimulates natural human impulses otherwise may make contributions better mental attitudes reformation harm censorship rehabilitation gainsaid inmates lose contact outside world become wary placing intimate thoughts criticisms prison letters artificial increase alienation society ill advised balanced state asserted interests values generally associated freedom speech free society values turn dross unfree one sostre mcginnis supra first amendment guarantees protect free uninterrupted interchange ideas upon democratic society thrives perhaps obvious victim indirect censorship effected policy allowing prison authorities read inmate mail criticism prison administration threat identification reprisal inherent allowing correctional authorities read prisoner mail lost inmates might otherwise criticize jailors mails one vehicles prisoners informing community existence days strife correctional institutions plight prisoners matter urgent public concern sustain policy chills communication necessary inform public issue odds basic tenets guarantee freedom speech first amendment serves needs polity also human spirit spirit demands expression integral part development ideas sense identity suppress expression reject basic human desire recognition affront individual worth dignity cf stanley georgia restraint may greatest displeasure indignity free knowing spirit put upon milton aeropagitica everyman ed prison gates slam behind inmate lose human quality mind become closed ideas intellect cease feed free open interchange opinions yearning end quest concluded anything needs identity compelling dehumanizing prison environment whether henry writing short stories jail cell frightened young inmate writing family prisoner needs medium role first amendment protect precious personal rights satisfy basic yearnings human spirit justice douglas joins part ii opinion see cruz beto cooper pate brown peyton rowland sigler supp neb aff fortune society mcginnis supp sdny accord moore ciccone nolan fitzpatrick brenneman madigan supp nd cal burnham oswald supp wdny carothers follette supp sdny see sostre mcginnis en banc preston thieszen supp wd cf gray creamer morales schmidt supp wd palmigiano travisono supp ri carothers follette supra test apply thus essentially test applied regulation question must important substantial governmental interest unrelated suppression expression limitation first amendment freedoms must greater necessary essential protection particular governmental interest involved ante see marsh moore supp mass see moore ciccone supra lay concurring cf jones wittenberg supp nd ohio aff sub nom jones metzger palmigiano travisono supra see generally mitford kind usual punishment prison business see national advisory commission criminal justice standards goals corrections see palmigiano travisono supra singer censorship prisoners mail constitution various studies strongly recommended correctional authorities right inspect mail contraband read national advisory commission criminal justice standards goals corrections standard pp see california board corrections california correctional system study institutions center criminal justice boston university law school model rules regulations prisoners rights responsibilities standards pp see nolan fitzpatrick emerson toward general theory first amendment yale justice douglas concurring judgment joined part ii justice marshall opinion think makes abundantly clear foremost among bill rights prisoners country whether state federal detention first amendment prisoners still persons entitled constitutional rights unless liberty constitutionally curtailed procedures satisfy requirements due process chief justice hughes stromberg california stated first amendment applicable reason due process clause fourteenth become customary rest broader foundation entire fourteenth amendment free speech press within meaning first amendment judgment among privileges immunities citizens