The following documents contain analysis of the monitoring of communications made by inmates convicted of offenses related to domestic and international terrorism. Many of the inmates are housed at the Communications Management Units in Terre Haute, Indiana (THA CMU) or Marion, Illinois (MAR CMU). These secretive units have been described by inmates as “Little Guantanamo” due to their unusual construction and treatment of detainees, severely restricting access to the public and media. For background information, see the June 25, 2009 Democracy Now interview with Andrew Stepanian, an animal rights activist imprisoned at one of the Communications Management Units.