This is a link to a torrent of the plans for the World's First 3D Printable Firearm. The state department has demanded that the original creator remove them from the internet. Apparently they have never heard of The Streisand Effect: http://en.wikipedia.org/wiki/Streisand_effect

Antiterrorism training materials used by the Department of Defense teach that public protests should be regarded as "low-level terrorism," according to a letter of complaint sent to the department by the American Civil Liberties Union of Northern California.