text:  1340 WBIW, Bedford. Talking in Tucson, I'm John Saucier, Fox News Homeland Security Secretary Alejandro Mayorkas giving some details on border security efforts during a visit to Tucson, Arizona today. Here's Fox's Christine Goodwin with more. Secretary Alejandro Mayorkas responding to a report that DHS confirmed more than 400 migrants entered the U.S. via an ISIS-linked group.