"Through skillful use of pressure and influence, they have been directly responsible in recent years for some of the most obnoxious activity in the censorship field. Presuming to speak for millions, they have persuaded congressional committees, state legislatures, local police departments, and other official agencies to enact unconstitutional laws, to adopt extralegal measures for the suppression of disapproved literature..."

"the removal, suppression, or restricted circulation of literary, artistic, or educational materials--of images, ideas, and information--on the grounds that these are morally or otherwise objectionable in light of standards applied by the censor"