The first American war crimes tribunal since World War II is taking place in Guantanamo Bay, Cuba. On trial is Osama bin Laden's driver, Salim Ahmed Hamdan. Defense lawyers say the poor Yemeni took the job only for its $200-a-month salary, but prosecutors say Hamdan was a willing recruit, aiding al-Qaida in its militancy efforts. Guest: Carol Williams, L.A. Times legal affairs writer, in Guantanamo Bay, Cuba