Everybody is always predicting disaster, yes. But sometimes they're right. I think the potential danger to the US of the whole ISIS/ISIL thing is largely overblown; Mr. & Mrs. Middle America generally don't care if the wogs* kill each other in boxcar lots, so long as they do it over there someplace foreign and don't disrupt gas prices too much. I am keeping a weather eye on the situation in eastern Ukraine, though, as that plate appears to be wobbling on its stick and could fly off with more force than anybody is really expecting.
A lot of big wars have started with the expectation that the other side would back down or acquiesce.
*Which, I'll remind you, start at Calais.