The National Religious Campaign against Torture (NRCAT) has launched a campaign to create an independent Commission of Inquiry to investigate the treatment of detainees.
Endorse the Call for a Commission of Inquiry.
Ask your Congressperson to support H.R. 104, a bill by Representative Conyers that would establish such a Commission.
Read Presbyterian Church (U.S.A.) policy about stopping torture. The 217th General Assembly (2006) [a large PDF] called for such an investigation and prosecution, if appropriate.