The soldiers call themselves the Four Horsemen as they barrel down roads with nicknames like “The Widowmaker,” staying alert through the night on a mix of Mountain Dew, Red Bull and adrenaline, hoping to find roadside bombs before the bombs find them. “There’s always some out there. There’s a threat every night,” said Sgt. Brian Parker, 36, of Mankato, Minn., part of a four-Humvee convoy escort team based at Camp Adder, about 200 miles southwest of Baghdad. Full Story