New revelations at Guantánamo show the walls have ears, and justice is being made a mockery. BY LAURA PITTER Just when you think it couldn't get much worse in the military commissions at Guantánamo, something happens to prove you wrong. It all began in late January when, during pretrial hearings in the case against five men accused in the 9/11 attacks, the audio feed -- which runs on a 40-second delay to prevent leaks of classified information -- was abruptly cut off. The media and observers, who sit behind a soundproof glass wall at the back of the court, noted the silence. But the cut surprised even the military judge, who believed he was the only one with authority to press the button and who did not consider the information being discussed at that moment classified. The audio cutoff was initiated "not by me," the judge, Army Col. James Pohl, said angrily at the time, and "I'm curious as to why." He added, "If some external body is