Unless they act, the baby boomer generation has a rendezvous with ignominy. Two reasons: the bungled prosecution of the present war, and the coming collapse of Medicare and Social Security. If the boomers — who pretty much run everything now — don’t act, these stunning twin failures will come to define the generation in American history. Long after the boomers are dust in the wind, historians will ponder: How did this generation of Americans so badly misjudge the threat and screw up the pursuit of their enemies? They will wonder: How did brainy Bill Clinton, the first boomer president, fail...