The Afghan soldier who killed US Major General Harold Greene had spent three years in the army before he squeezed off two to three bursts of gunfire from a first-floor window at a senior military delegation in Kabul, officials said on Wednesday. As details emerged about Tuesday’s attack at a military complex in the Afghan capital, a picture was forming of a rogue Afghan soldier who may have been difficult to spot before he killed Greene and wounded 14 coalition troops. Greene was the most senior US military official killed in action overseas since the war in Vietnam. His father described him to Reuters as...