The public is appropriately alarmed about exactly who we might be letting in. It would be easy, and commonsensical, to follow their prompting and pause the refugee program, figure out how to screen those seeking entrance more carefully, and let in only the peaceable. If that takes time, it takes time.

If Mr. Obama had wisdom as opposed to pride and a desire to smack around the GOP—a visit to Capitol Hill this week showed me he’s thinking a lot more about them than they are about him—he would recognize the refugee issue as a distraction from the most urgent priorities.

Those would include planning for and agreeing on how to deal with both the reality and the aftermath of a parade of possible horribles on which we should once again concentrate—anything from shootings in Times Square to suicide bombings in Washington to a biological device in, say, Greeley, Colo. It would include planning for any military activity that might likely follow such an event or events.

If what we are experiencing now results in an epic collision, are we ready?