It’s no surprise that among the first questions White House Press Secretary Jay Carney received at today’s press briefing was one that concerned a recently-leaked Justice Department memo that offered justification for killing U.S. citizens abroad in predator drone attacks. Carney began by clarifying that the memo in question was an “unclassified document” prepared for members of Congress. “The president takes his responsibilities very seriously,” Carney said. “And first and foremost that’s his responsibility to protect the United States.” He continued by saying that the president is dedicated to