IQ2 debate: Does the President have the constitutional power to target and kill US citizens abroad?

Moving drone into position
A crew of National Guardsmen, led by Sgt. Nicholas Erdos-Thayer at far right, move the unmanned aircraft, called a Shadow, onto its launcher at Camp Ripley near Little Falls, Minn. on Friday, May 17, 2013. The launcher slingshots the drone into the sky at about 80 mph.
MPR Photo/Nathaniel Minor