In the aftermath of the Sept. 11 attacks, the US military pursued abusive interrogation techniques once used by North Korea and Vietnam on American prisoners of war despite stern warnings by several military lawyers that the methods were cruel and illegal, according to a Senate investigation. The findings, detailed in a hearing Tuesday, brought rebukes of the Pentagon effort from Democrats and Republicans alike. “The guidance (administration lawyers) provided will go down in history as some of the most irresponsible and shortsighted legal analysis ever provided to our nation's military and intelligence communities,” said Republican Sen. Lindsey Graham, an Air Force Reserve colonel who teaches military law for the service. The hearing is the Senate Armed Services Committee's first look at the origins of harsh interrogation methods and how policy decisions were vetted across the Defense Department. Its review fits into a broader picture of the government's handling of detainees, which includes FBI and CIA interrogations in secret prisons. The panel is expected to hold further hearings on the matter and release a final report by the end of the year. Among its initial findings is that senior Pentagon lawyers, including the office of general counsel William “Jim” Haynes, sought information as early as July 2002, nine months after the 2001 attacks, regarding a military program that trained US troops how to survive enemy interrogations and deny foes valuable intelligence. Much of the training program, known as “Survival, Evasion, Resistance and Escape,” or SERE, is based on experiences of American prisoners of war in previous conflicts, including those in Korea and Vietnam.In response, SERE officials provided Haynes' office a list of tactics that included sensory deprivation, sleep disruption and stress positions. Several of those techniques, including stress positions, were later approved by Defense Secretary Donald H. Rumsfeld in a December 2002 memo for use at Guantanamo Bay. Rumsfeld and Haynes agreed to the methods, despite objections by military service lawyers that they might be illegal. The committee also released previously secret and privately held documents Tuesday. According to minutes from an October 2002 meeting, a top military lawyer at Guantanamo said prisoners were exposed to previously forbidden techniques, such as sleep deprivation, but that such treatment was hidden from the International Committee of the Red Cross.