If you want some information on individuals prosecuted or detained by U.S. authorities for alleged terrorist actions, here's a handy-dandy fact sheet from the Department of Justice. It starts with the prosecutions arising from the 1993 bombing of the World Trade Center and includes the four individuals just detained for attempting to bomb a synagogue in the Bronx and to shoot down military plans. (Thanks to Jeff.)
For more information, visit the website of the the Investigative Project on Terrorism. It contains a mother lode of trial documents and other relevant material.