According to the article below, "a document the American Civil Liberties Union (ACLU) obtained from the Pentagon flat out contradicts Sanchez’s testimony. It’s a memorandum entitled 'CJTF-7 Interrogation and Counter-Resistance Policy,' dated September 14, 2003. In it, Sanchez approved several methods designed for 'significantly increasing the fear level in a detainee.' These included 'sleep management'; 'yelling, loud music, and light control: used to create fear, disorient detainee, and prolong capture shock'; and 'presence of military working dogs: exploits Arab fear of dogs.'"

http://www.veteransforcommonsense.org/?Page=Article&ID=3380