Michael Flynn claimed there are Arabic signs on the southern border to guide "radicalized Muslims" into the US: https://t.co/3sXlOgDStp— Jenna Johnson (@wpjenna) December 9, 2016
Don’t know about the source, but I’ve read articles on FR that have said that Muslim prayer rugs were found on the border and that Border Agents have said that middle easterners were crossing or trying to cross.