Christopher Hitchens writes in Vanity Fair:Here is the most chilling way I can find of stating the matter. Until recently, "waterboarding" was something that Americans did to other Americans. It was inflicted, and endured, by those members of the Special Forces who underwent the advanced form of training known as sere (Survival, Evasion, Resistance, Escape). In these harsh exercises, brave men and women were introduced to the sorts of barbarism that they might expect to meet at the hands of a lawless foe who disregarded the Geneva Conventions. But it was something that Americans were being trained to resist, not to inflict.Exploring this narrow but deep distinction, on a gorgeous day last May I found myself deep in the hill country of western North Carolina, preparing to be surprised by a team of extremely hardened veterans who had confronted their country's enemies in highly arduous terrain all over the world. They knew about everything from unarmed combat to enhanced interrogation and were going to show me as nearly as possible what real waterboarding might be like.Hitchens undergoing his first waterboarding session. Photograph: Gasper Tringale.