“No person shall be held to answer for a capital, or otherwise infamous crime, unless on a presentment or indictment of a Grand Jury, except in cases arising in the land or naval forces, or in the Militia, when in actual service in time of War or public danger, nor be deprived of life, liberty, or property, without due process of law.”
The memo states that it is legal to conduct a "lethal operation outside the United States against a U.S. citizen who is a senior, operational leader of al-Qaeda" if (among other elements) "an informed, high-level official has determined that the targeted individual poses an imminent threat of violent attack against the United States."
I'm pretty sure that if George W's Justice Department issued a memo justifying the legality of his sitting in the White House Situation Room playing solitaire with the lives of Americans accused of being a terrorist the Democrats generally, and the Congressional Black Caucus in particular, would be demanding that impeachment proceedings begin this… very… afternoon.
This is not to say there isn't a good deal of Congressional throat-clearing among Democrats on Capitol Hill over this stuff and, as I said the hearing were going on as I was typing this and anti-drone protesters (if I only had a dollar for every time I'd type that phrase) have disrupted the hearings five times leading committee chair Sen. Diane Feinstein (D-Cal) to order the hearing room cleared of all observers.
Life was so much easier for Mr. Obama just three months ago when all he had to do was accuse Mitt Romney of exporting jobs.