Most Americans in the service don't join up to guard downtown Minneapolis or serve in, say, the Pennsylvania theater. But they may have to change their outlook. Last week the Pentagon made it clear it wants to make a senior military officer responsible for the defense of the nation.
This may seem like an obvious idea when the Pentagon seems so involved in every aspect of American life right now. Since Sept. 11 its warplanes have been patrolling U.S. skies, and thousands of military troops have been guarding U.S. airports and key bridges, ports and dams. But these forces are being...