Michael L. Gross, Moral Dilemmas of Modern War: Torture, Assassination, and Blackmail in an Age of Asymmetric Conflict, Cambridge University Press, 2010, p. 128, ISBN 978-0521685108.
«enhanced interrogation techniques [...] include hooding or blindfolding, exposure to loud music and temperature extremes, slapping, starvation, wall standing and other stress positions and, in some cases, waterboarding. [...] In the United States, enhanced interrogation was reserved for terror suspects [...] These methods include shaking, slapping, beating, exposure to cold, stress positions and, in the United States, waterboarding.»
