Eight years ago, a terrorist bomber’s attempt to blow up a transatlantic airliner was thwarted by a group of passengers, an incident that revealed some gaping holes in airline security just a few months after the attacks of Sept. 11. But it was six days before President George W. Bush, then on vacation, made any public remarks about the so-called shoe bomber, Richard Reid, and there were virtually no complaints from the press or any opposition Democrats that his response was sluggish or inadequate. That stands in sharp contrast to the withering criticism President Barack Obama has received from Republicans...