The U.S. must strike back at those who attacked us. But we must do so aware that we have other soldiers sitting deep and poorly defended among hostiles. Three Americans were killed on a spot of land just at the border of Jordan‚ Syria‚ and Iraq last weekend. Republican senators and congressmen‚ so anxious to portray Biden as weak and to call for a vigorous military response‚ have blown past the most basic questions about the incident‚ ones that make both the Trump and...