http://news.yahoo.com/s/ap/20110502/ap_on_re_us/us_bin_laden_hunt_for_bin_laden
Mohammed did not reveal the names while being subjected to the simulated drowning technique known as waterboarding, former officials said. He identified them many months later under standard interrogation, they said, leaving it once again up for debate as to whether the harsh technique was a valuable tool or an unnecessarily violent tactic.