As a JAG in the Nevada National Guard, I used to lecture the soldiers of the 72nd Military Police Company every year about their legal obligations when they guarded prisoners. I'd always conclude by saying, "I know you won't remember everything I told you today, but just remember what your mom told you: Do unto others as you would have others do unto you." That's a pretty good standard for life and for the law, and even though I left the unit in 1995, I like to think that some of my teaching had carried over when the 72nd refused to participate in misconduct at Iraq's Abu Ghraib prison.

Sometimes, though, the questions we face about detainees and interrogation get more specific. One such set of questions relates to "waterboarding."

That term is used to describe several interrogation techniques. The victim may be immersed in water, have water forced into the nose and mouth, or have water poured onto material placed over the face so that the liquid is inhaled or swallowed. The media usually characterize the practice as "simulated drowning." That's incorrect. To be effective, waterboarding is usually real drowning that simulates death. That is,

the victim experiences the sensations of drowning: struggle, panic, breath-holding, swallowing, vomiting, taking water into the lungs and, eventually, the same feeling of not being able to breathe that one experiences after being punched in the gut. The main difference is that the drowning process is halted. According to those who have studied waterboarding's effects, it can cause severe psychological trauma, such as panic attacks, for years.

The United States knows quite a bit about waterboarding. The U.S. government -- whether acting alone before domestic courts, commissions and courts-martial or as part of the world community -- has not only condemned the use of water torture but has severely punished those who applied it.

After World War II, we convicted several Japanese soldiers for waterboarding American and Allied prisoners of war. At the trial of his captors, then-Lt. Chase J. Nielsen, one of the 1942 Army Air Forces officers who flew in the Doolittle Raid and was captured by the Japanese, testified: "I was given several types of torture. . . . I was given what they call the water cure." He was asked what he felt when the Japanese soldiers poured the water. "Well, I felt more or less like I was drowning," he replied, "just gasping between life and death."

Nielsen's experience was not unique. Nor was the prosecution of his captors. After Japan surrendered, the United States organized and participated in the International Military Tribunal for the Far East, generally called the Tokyo War Crimes Trials. Leading members of Japan's military and government elite were charged, among their many other crimes, with torturing Allied military personnel and civilians. The principal proof upon which their torture convictions were based was conduct that we would now call waterboarding.

In this case from the tribunal's records, the victim was a prisoner in the Japanese-occupied Dutch East Indies:

A towel was fixed under the chin and down over the face. Then many buckets of water were poured into the towel so that the water gradually reached the mouth and rising further eventually also the nostrils, which resulted in his becoming unconscious and collapsing like a person drowned. This procedure was sometimes repeated 5-6 times in succession.

The United States (like Britain, Australia and other Allies) pursued lower-ranking Japanese war criminals in trials before their own tribunals. As a general rule, the testimony was similar to Nielsen's. Consider this account from a Filipino waterboarding victim:

Q: Was it painful?

A: Not so painful, but one becomes unconscious. Like drowning in the water.