I srael’s military on Wednesday warned of worse bloodshed to come as the death toll on both sides since the surprise attack by Hamas continued to rise. Another 450 airstrikes were carried out on Gaza overnight, including 200 on a district of Gaza City that Israel said was a hotbed for Hamas terrorists. There were also renewed exchanges of fire inside Israel between security forces and Hamas gunmen in new evidence that some of the fighters who broke through the border on Saturday remain to pose a lethal threat. Israeli spokesman Rear Admiral Daniel Hagari said “sweeps” of territory near...