Number of Drone Strikes in Afghanistan Jumped 72 Percent in 2012

At least 16 civilians killed

KABUL, Afghanistan (AP) -- The number of U.S. drone strikes in Afghanistan jumped 72 percent in 2012, killing at least 16 civilians in a sharp increase from the previous year, the U.N. said Tuesday in a sign of the changing mission as international forces prepare to withdraw combat forces in less than two years.