Predator Drones and America's License to Kill

The US does not acknowledge that CIA operators use unmanned drones to kill terrorist suspects thousands of miles away in Afghanistan, Pakistan and other places. But a UN report says President Obama is expanding the practice in possible violation of international laws that protect human rights, especially when innocent civilians become "collateral damage." Supporters say it's the least bad alternative for taking out dangerous people in remote places. Is America safer? Should the military take over?