President Barack Obama has received much credit for drawing down American involvement in Iraq and Afghanistan, but less attention has been paid to his administration's embrace of armed drones.

His expansion of covert drone strikes goes far beyond that of former President George W. Bush, and has blurred the line between warfare and assassination.

The classified processes used by the White House for approving these remote killings in foreign countries - countries which the U.S. is not officially at war with - has people questioning not only the Obama administration's tactics, but also the collateral damage of civilian casualties left in its wake.

Infographic: Armed Drones Are President Obama's Favorite Weapon

(With thanks to Sam Jacobs)