For a month, several small groups of Hizbullah militants on a Lebanese hillside have withstood heavy artillery shelling and airstrikes to continue firing hundreds of Katyusha rockets into Israel from positions just a few hundred yards from the border. Even seasoned observers with the United Nations peacekeeping force in south Lebanon, known as UNIFIL, whose headquarters lies at the foot of the hillside, are baffled at how the guerrillas have managed to survive and keep up their steady rocket fire. Full Story