Here we go again. Francis X. Taylor, under-secretary for intelligence and analysis at the Department of Homeland Security, testified before the Senate Committee on Homeland Security on Sept. 10 that operatives of the extremist jihadi movement variously known as ISIS, ISIL or the Islamic State have discussed infiltrating the United States through the Mexican border. "There have been Twitter and social-media exchanges among ISIL adherents across the globe speaking about that as a possibility," Taylor said in response to a question from Sen. John McCain, who wanted to know if any ISIS chatter had been intercepted that "would urge infiltration into the United States across our Southwestern border." But Taylor said he was "satisfied that we have the intelligence and the capability at our border that would prevent that activity." And when pressed further, he admitted: "At present, DHS is unaware of any specific, credible threat to the US homeland from ISIL." This weasily flipping gives the media the opportunity to play it however they want. So the liberal Huffington Post headline reads "DHS Doesn't Think ISIS Is Plotting Attack Through US-Mexico Border," while the establishmentarian Bloomberg goes with "Islamic State Talked of Entering US Through Mexico."