The United States military is increasingly relying upon remotely piloted drones to carry out tactical missions in the war in Afghanistan. Other countries, such as Pakistan and Yemen, are also using drones in battle more often. A drone killed the American-born, Yemen-based al-Qaida leader Anwar al-Awlaki last month, and before that the United States used them to gather intelligence on Osama bin Laden's Abbottabad compound. With the increasing prevelance of drones, and the fact that they have killed both militants and civilians, some people are worried that a dangerous global drone arms race may be beginning. Scott Shane, national security correspondent for The New York Times, reported on the story in Sunday's paper.