The obsession with Catholic Workers and Mao is *so* 1950s, and demonstrates that the administration doesn't really care about al-Qaeda and isn't even mainly using the act to combat that sort of terrorism. In fact, with all its powers, it is hard for the Federal government to point to any successful domestic investigation and prosecution of al-Qaeda-type terrorists in the US.

Update: The story about the student getting investigated for requesting a book on Mao was a hoax.