Homeland Security Warns to Be Vigilant Amid Attack in Israel

America is on high alert over jitters that the war in Israel could spill over onto the streets of U.S. cities. The Department of Homeland Security is warning police departments about a heightened threat with orders to remain vigilant. Security experts say the most serious threat may come from lone-wolf extremists fired up by the disturbing images seen over the last week. Inside Edition's Les Trent has more.