It was Sunday — a day of rest for the American troops at the Marine compound in Beirut. Sgt. Steve Russell stood guard duty early that morning when he heard a yellow flatbed truck rev its engine and head for the entrance. The truck, carrying the equivalent of 21,000 pounds of TNT, exploded. Sgt. Russell survived, but the attack killed 241 America troops, mainly Marines, who had come to Lebanon on a peacekeeping mission. Fifty-eight French soldiers died in another attack across town.