Israel says pilot safe zones begin in southern Lebanon

July 20 (Reuters) - The Israeli military said on Monday it had begun a pilot programme for safe zones in southern Lebanon in cooperation with U.S. and Lebanese forces, in what a U.S. official called a step toward reasserting Lebanese state authority in the area.The pilot zones are designated areas in southern Lebanon where a U.S.-brokered framework agreement between Israel and Lebanon signed last month foresees Iran-backed Hezbollah's disarmament, the withdrawal of Israeli forces and the deployment of Lebanese troops.