"We see no credible threat to the United States." DHS Secretary Markwayne Mullin reassures Americans that U.S. aviation security remains on heightened alert following the shocking attempted terror attack aboard a flydubai flight bound for Israel. Mullin says air marshals, TSA, and the rest of DHS are prepared for threats like this, stressing officials remain "very confident" of zero threats based on the information they have right now. ▻