Washington, D.C.
http://www.aclu.org/prison/index.html
(212) 549-2666 (media inquiries)
The ACLU runs the only national litigation office for prisoners. The agency says that it is represented more than 100,000 inmates since 1972. ACLU lawsuits have led to court supervision of entire state prison systems as well as individual facilities. The group's current legal docket is available on its web site.