Americans Sentenced in Afghan Torture KABUL, Afghanistan - Three Americans - led by a former Green Beret who boasted he had Pentagon support - were found guilty Wednesday of torturing Afghans in a private jail and were sentenced to prison.    After a 7 1/2-hour session in a stuffy Kabul courtroom, the three-judge panel was unanimous in convicting the former soldier, Jonathan Idema, and his right-hand man, Brent Bennett, on charges of entering Afghanistan illegally, making illegal arrests, establishing a private jail and torturing their captives...