When the rapes and massacres, the plagues, the famines, the floods, or the droughts erupt in far-off places, the world stands still. MSF does not. They are the "smoke jumpers" among international aid organizations. While others are often stymied or delayed by bureaucratic red tape, the men and women of Doctors Without Borders (M?decins Sans Fronti?res or MSF) move in. They provide food and clean water. They dig latrines. They set up first-aid stations...