I'm going to beat Unseen to this one!

So Eric Holder in a recent Congressional hearing has left the door open to preforming a drone strike against terrorists on American soil in an "extraordinary circumstance."

From CNN:
"Attorney General Eric Holder is not entirely ruling out a scenario under which a drone strike would be ordered against Americans on U.S. soil, but says it has never been done previously and he could only see it being considered in an extraordinary circumstance.

He began to winnow the list of those possible extraordinary circumstances Wednesday. In testimony Wednesday before the Senate Judiciary Committee, Sen. Ted Cruz, R-Texas, pressed Holder whether he believed it would be constitutional to target an American terror suspect 'sitting at a cafe' if the suspect didn't pose an imminent threat.

'No,' Holder replied."

Given the fact that there are people out there who want to kill us, who want to die for their cause, and who label themselves as an enemy to America, do you think that they Attorney General makes a valid point? Might there be some circumstance where a drone strike is the best option to prevent even more loss of life including that of law enforcement? Is he just plain wrong and this can't be permitted at all? As Senator Paul is now filibustering on the Senate floor and making the point, is there zero room for a lethal military/law enforcement drone strike on an individual? Might there still be a comparison with the use of lethal force by a police officer to a person that is known to be armed, dangerous, and looking to kill?