In this March 27, 1973 photo, surrounded by luggage of other departing GIs, U.S. Air Force airman reads paperback novel as he waits to begin processing at Camp Alpha on Saigon’s Tan Son Nhut airbase in Saigon as troop withdrawals resume after 10 day-delay. More than 900 will leave with all U.S. troops out by Thursday. (AP photo/Charles Harrity)