By The Associated Press

Thirteen "enhanced interrogation techniques" are at the center of the Senate Intelligence Committee report about the CIA's use of harsh interrogation tactics after the Sept. 11, 2001, terror attacks. A look at the methods, as listed in a May 30, 2005, Justice Department memo to the CIA:å

1. Abdominal Slap ‐ The purpose was to cause the detainee to feel fear and despair, to punish certain behavior and humiliate or insult the detainee, according to a description in government documents, obtained by the American Civil Liberties Union in 2009. The interrogator stands about a foot from the detainee's stomach, and slaps the detainee with the back of his hand. The interrogator's hand is held with the fingers together and straight and slaps the detainee's abdomen. The CIA was using this technique prior to 2004 without approval by the Justice Department.

2. Attention Grasp ‐ The interrogator grabs the detainee by the collar, with two hands, and pulls him closer in, according to a description of the technique by former CIA acting general counsel John Rizzo. Rizzo described this technique being used on al-Qaida operative Abu Zubaydah in his recent book, "Company Man."