The opposition starts with definitions and not words.

...A confidential Justice Department memo (click here) concludes that the U.S. government can order the killing of American citizens if they are believed to be “senior operational leaders” of al-Qaida or “an associated force” -- even if there is no intelligence indicating they are engaged in an active plot to attack the U.S....

I see a PROCESS through the judiciary validating the definition of an individual with INTENTIONS and AVAILABLE METHODS.