Anderson Cooper was reporting live from Gaza on Sunday night, when he had a close call with the conflict that's escalating in the region. In the midst of his report, a large explosion went off nearby. Cooper instinctively ducked, remarking, "That was a rather large explosion" a few seconds later. "That was probably the largest explosion that we've heard just in the past, really in the past hour," he added. "There have been a number explosions in the last hour or two." Without skipping a beat, Cooper continued to offer information on the situation.