This site, archivefreedom.org, intended to tell the story of banned arxiv posters is bound to be worth checking out every once in a while. My favorite quote so far, is in the letter to Noam Chomsky, where Carlos Castro Perelman, writes
I would like to bring to you attention the level of corruption and hypocrisy that has plagued the world of science, Physics in particular, in recent years . No wonder why this country ( USA ) is spiraling into Fascism.
Capital Ph, Capital F, spiraling into McCarthyism.
josephson’s letter (linked from the site) is pretty good
http://www.tcm.phy.cam.ac.uk/~bdj10/archivefreedom/main.html
And don’t miss his paper: String Theory, Universal Mind, and the Paranormal