The American Civil Liberties Union
http://www.aclu.org/
http://www.aclu.org/SafeandFree/SafeandFreeMain.cfm
Unitarian Universalist Service Committee
http://www.uusc.org
http://www.uusc.org/news/generalassembly043003.html
Veterans for Peace
http://www.veteransforpeace.org
Cato Institue (Libertarian)
http://www.cato.org/current/civil-liberties/index.html
Amnesty International
http://www.amnestyusa.org/waronterror/index.html
Free For All : Defending Liberty in America Today
by Wendy Kaminer
In Our Defense: The Bill of Rights in Action
by Ellen Alderman ,
Caroline Kennedy (Contributor)