The Defense Department has increased the counterintelligence threat assessment to its highest level, and Israel is believed to have eavesdropped on American negotiations with Iran.
Israel invaded Lebanon and occupied parts of the country to fight Hezbollah, an Iran-backed armed group, but its military offensive has drawn in others.
Israel’s military said a soldier opened fire after Israeli troops “perceived a vehicle accelerating toward them.” The baby’s grandmother, who was in the car, disputed that account.