Argument: US prosecuted foreign governments for waterboarding
Scott Shane and Mark Mazetti. "In Adopting Harsh Tactics, No Look at Past Use". New York Times. April 21, 2009 - "Even George J. Tenet, the C.I.A. director who insisted that the agency had thoroughly researched its proposal and pressed it on other officials, did not examine the history of the most shocking method, the near-drowning technique known as waterboarding. [...] The top officials he briefed did not learn that waterboarding had been prosecuted by the United States in war-crimes trials after World War II and was a well-documented favorite of despotic governments since the Spanish Inquisition; one waterboard used under Pol Pot was even on display at the genocide museum in Cambodia."