If the government's interest is penological it also has broader rights to censor speech. Prisoners' outgoing mail can be censored in order to thwart escape plans, shield the recipients from obscene or menacing letters, or circumvent inaccurate or adverse reports about prison conditions. Under the Supreme Court ruling in Procunier v. Martinez, 416 U.S. 396, 94 S. Ct. 1800, 40 L. Ed. 2d 224 (1974), prison administrators can censor prisoners' personal correspondence only if it is necessary to maintain security, order, or rehabilitation efforts. Such censorship can be neither random nor excessively troublesome.
Law Library - American Law and Legal InformationFree Legal Encyclopedia: Robert Lee Carter - Further Readings to Child MolestationCensorship - Prisoners' Mail, Entertainment, Music, Art, Books, Students' Speech, Internet - Abortion