“Responding to a question from Sen. John McCain, Francis Taylor, undersecretary for intelligence and analysis at the Department of Homeland Security, said on Wednesday that ISIS has discussed entering the United States at the South Texas border. ‘There have been Twitter and social media exchanges among ISIL adherents across the globe speaking about that as a possibility,’ Taylor told the Senate Homeland Security and Governmental Affairs Committee. McCain had asked about ‘recent reports on Twitter and Facebook of messages that would urge infiltration into the U.S. across our southwestern border.’ ‘Certainly any infiltration across our border would be a threat,’ Taylor said.”
http://www.newsmax.com/Newsfront/ISIS-Mexico-infiltration-southern/2014/09/11/id/594212/