According to a report by NBC News:
A confidential Justice Department memo 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.
This would seem to violate the constitutional prohibition against the violation of the due process rights of the targeted individuals. Seeing as these citizens are not members of military, and are not necessarily involved in operations against the US, it would seem to preclude the military exemptions authorized in a time of war.
This policy and the actions taken in its name seem to be nothing short of state sanctioned murder. Is there any authority granted to the Executive branch of the government to take these actions?