Colbert signs petition to ‘Close Gitmo Now.’

Last week, a group of international musicians that includes Trent Reznor, R.E.M., Pearl Jam, Jackson Browne, and others joined the National Campaign to Close Guantanamo and filed Freedom of Information Act requests seeking to declassify all secret government records pertaining to how music was used in detainee interrogations in Guantanamo, Afghanistan, and Iraq. Last night, Roseanne Cash promoted the cause on The Colbert Report, where she successfully got the host to sign a petition calling for the closing of the prison at Guantanamo Bay. Watch it: