The other day, New York Times columnist Tom Friedman wrote that, “ISIS is awful but is not a threat to America’s homeland.” Let’s hope he’s right, but who thought Al Qaeda was a threat to America’s homeland – until it was? The fact is that hundreds of Americans and British young men have signed on to fight with ISIS against the United States and Britain and who knows who and what else. They carry passports that allow them easy entry into this country. They might get caught trying to return home after a year or two in Syria, but they might not. And if they don’t, is it really that hard to imagine an American jihadist making a suicide vest and setting it off on a crowded street somewhere in the United States?