One early report said that the memo supports letting not only the president, but also other high officials, order drone strikes. I have to wonder whether the document applies only to foreign soil.
Of course lefties won't criticize anything that a leftist president does except, in rare cases when he doesn't steer far enough to the left. But there's a darker reason for their silence on this matter. Governments are already using drones for stateside surveillance. An FAA report predicts that 30,000 will be in deployed two decades hence. Some lefties endorse this memo because they think it sets lays the groundwork for incinerating domestic political opponents. For once, they're probably correct.