There was much to celebrate in the providential combination of an incompetent terrorist and surpassingly brave passengers and crew who saved 288 people aboard Northwest Airlines flight 253 on Christmas Day. There is a lot less to applaud in the official reaction.

Well-deserved mockery has already been heaped on the move-along-folks-nothing-to-see-here tone of the administration's initial pronouncements—from Janet Napolitano's "the system worked," to President Obama's statement that Umar Farouk Abdulmutallab was an "isolated extremist." This week brought little improvement.

The president acknowledged that the plot had been hatched in Yemen, but not without adding the misleading statement that Yemen faces "crushing poverty and deadly insurgencies." That Yemenis have...