After a unilateral ceasefire failed Tuesday, Israel signaled an escalation of a bombing campaign aimed at Hamas. The legality of targeting houses of militants is hotly debated.
Israel said it shot down a drone near Ashdod with a Patriot missile. Hamas has continued its menacing but ineffective rocket barrage into southern Israel as foreign nationals in Gaza flee.
Will Israel send in ground troops as it did with Operation Cast Lead in 2009? Or, will this be a relatively short air-strikes-only operation, like the 2012 Pillar of Defense? On Saturday, Israel added another missile battery to its Iron Dome.