(GAZA CITY, Gaza Strip) — Israeli aircraft, tanks and navy gunboats targeted symbols of Hamas control in Gaza City early Tuesday in the heaviest night of bombardment in three weeks of Israel-Hamas fighting after Israeli Prime Minister Benjamin Netanyahu warned of a “prolonged” campaign in Gaza. MoreGaza Bloodshed Continues Despite UN’s Call For Cease-FireBloody Day in Gaza as Calls for Cease-Fire IntensifyFBI Says It's Not Hiding Oklahoma City Bombing Videos NBC NewsU.S.