"ISIL poses a threat to the entire civilized world," President Obama said in his Saturday radio address, as he explained what he's doing to counter the threat posed by radical Islamic extremism -- a phrase he refuses to use. In addition to waging war and diplomacy, Obama said Americans, for their own good, must welcome Muslims into their midst: "As we move forward in this fight, we have to wield another weapon alongside our airstrikes, our military, our counterterrorism work, and our diplomacy. And that's the power of our example. Our openness to refugees fleeing ISIL's violence. Our determination to...