Trick dr. situation. >> thank you. >> breaking tonight, terror is now the concern that concerns americans most is the number one issue. after the paris and san bernadino attacks, and the security system that allowed tashfeen malik into the u.s., the 2016 candidates are taking note, hitting the trail with their plans to take on terrorism. defeat isis, and protect the homeland. who fair best at the g.o.p. debate in just four days. rich lowry and alan colmes are here for fair and balanced debate. >> isis cannot be debated simply with air strikes. in fact, no war can simply be won with air strikes...