.....In 1954, the Providence, RI, post office attempted to block delivery of Lenin's State and Revolution to Brown University, citing it as "subversive". ..... In the 1950s, according to Walter Harding, Senator Joseph McCarthy had overseas libraries run by the United States Information Service pull an anthology of American literature from the shelves because it included Thoreau's Civil Disobedience.) ....
D. H. Lawrence's Lady Chatterley's Lover was the object of numerous obscenity trials in both the UK and the United States up into the 1960s.
....... In the 1999-2000 session, the US Congress quietly slipped similar bans for "dangerous" information on drugs and explosives into various bills. The Methamphetamine Anti-Proliferation Act of 1999 (S. 1428) had a section 9 outlawing certain dissemination of information on drug use, patterned after a law outlawing certain dissemination on information on explosives that was signed in 1999. .....
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Unfit for Schools and Minors?
The Savannah Morning News reported in November 1999 that a teacher at the Windsor Forest High School required seniors to obtain permission slips before they could read Hamlet, Macbeth, or King Lear.
etc.