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 in his unit except for two. ``It was very fierce fighting,'' said Sinh, 52, who lost his left eye during the war and still has shrapnel embedded in his arm. ``Each side tried to...