NOBODY does dismissive better than Defense Secretary Donald Rumsfeld. When confronted with an uncomfortable truth, he has a way of brushing it off with a brusque one liner. "Death has a tendency to encourage a depressing view of war,'' was one of his classics. A war gone awry has a way of encouraging a depressing view of its leadership. Rumsfeld cannot so easily dismiss the rising chorus of condemnation from retired generals who have called for his resignation. As Army Maj. Gen. John Riggs told National Public Radio last week, Rumsfeld has fostered an "atmosphere of arrogance" at the Pentagon....