SALEM - He was the quiet, well-groomed man in the suit, who kept to himself in this neighborhood nestled at the edge of a bustling college, where almost everybody seemed to be from somewhere else and nobody stood out. But yesterday, a different Ahmed Fathy Mehalba was on display, this time in a federal court, where he appeared in jeans and an orange golf shirt, accused of possessing classified information he allegedly acquired at the U.S. prison camp at Guantanamo Bay, Cuba, where he worked as a civilian translator. Just what route the Egyptian-born Mehalba, 31, took after his days...