Vice President Dick Cheney said Monday that he was directly involved in approving severe interrogation methods used by the CIA, and that the prison at Guantanamo Bay, Cuba, should remain open indefinitely. Cheney's comments ... mark the first time that he has acknowledged playing a central role in clearing the CIA's use of an array of controversial interrogation tactics, including a ... method known as waterboarding. I was aware of the program, certainly, and involved in helping get the process cleared," Cheney said in an interview with ABC News. Asked whether he still believes it was appropriate to use the waterboarding method on terrorism suspects, Cheney said: "I do." His comments come on the heels of disclosures by a Senate committee showing that high-level officials in the Bush administration were intimately involved in reviewing and approving interrogation methods that have since been explicitly outlawed and that have been condemned internationally as torture. Soon after the Sept. 11 attacks, Cheney said, the CIA "in effect came in and wanted to know what they could and couldn't do. And they talked to me, as well as others, to explain what they wanted to do. And I supported it." Waterboarding involves strapping a prisoner to a tilted surface, covering his face with a towel and dousing it to simulate the sensation of drowning. CIA Director Michael V. Hayden has said that the agency used the technique on three Al Qaeda suspects in 2002 and 2003. Cheney has long defended the technique. But he has not previously disclosed his role in pushing to give the CIA such authority.