On the Bay Hap River, Vietnam (AP) The 50-foot Swift boats were easy targets as they plowed through the waterways of the Mekong Delta in packs of three or four; making big waves and thunderous noise when approaching. Former Viet Cong soldier Duong Hoang Sinh remembers them well—the one time he tangled with three Swift boats, the Americans killed all of the insurgents(well—the AP does like that term to describe our enemies, doesn’t it?) in his unit except two. “It was very fierce fighting,” said Sinh, 52, who lost his left eye during the war and still has shrapnel...