“Phi cang Saigon Tansonnhut"   "He puzzled at the meaning and smiled inwardly. The sign probably said, “Welcome and Affectionate Salutations to All Who Enter the Glorious Tan Son Nhut Air Base, Home of Seventh Air Force, Only Minutes from Beautiful Saigon.” Or maybe not; he couldn’t know. Maybe it read, “Welcome to the Dung Heap of Despair—Abandon Cheer, All Ye Who Enter.”