This is an interesting article about the history of water boarding. Waterboarding has been used since the inquisition. It was known variously as "water torture," the "water cure" or tormenta de toca. The US has always been hypocritical about the procedure. The US used it as an interrogation method by even police during the early part of the 20th century. One US soldier was convicted for using it during the Spanish-American war, yet President Theodore Roosevelt defended the practice. "The enlisted men began to use the old Filipino method: the water cure," he wrote in a 1902 letter. "Nobody was seriously damaged."
In the war crimes tribunals that followed Japan's defeat in World War II, the issue of waterboarding was sometimes raised. In 1947, the U.S. charged a Japanese officer, Yukio Asano, with war crimes for waterboarding a U.S. civilian. Asano was sentenced to 15 years of hard labor.
It isn't much of a stretch to think that US law enforcement would use the method. In 1983, Texas Sheriff James Parker was charged, along with three of his deputies, for handcuffing prisoners to chairs, placing towels over their faces, and pouring water on the cloth until they gave what the officers considered to be confessions. The sheriff and his deputies were all convicted and sentenced to four years in prison.
Stephen Rickard, Washington director of the Open Society Institute, says that throughout the centuries, the justifications for using waterboarding have been remarkably consistent.
"Almost every time this comes along, people say, 'This is a new enemy, a new kind of war, and it requires new techniques,'" he says. "And there are always assurances that it is carefully regulated."