Israel Vows "Mighty Vengeance" After Surprise Attack By Hamas Hills Hundreds

Gunmen from the Palestinian group Hamas rampaged through Israeli towns on Saturday, killing at least 600 Israelis and escaping with dozens of hostages in by far the deadliest day of violence. Nearly 400 Gazans were also killed when Israel responded with one of its most devastating days of retaliatory strikes. Fighting continued into the night. "We will take mighty vengeance for this wicked day," Prime Minister Benjamin Netanyahu said.