Today is expected to be the day the White House announces that CIA director Leon Panetta will be nominated to become SECDEF. There is plenty of speculation about why Panetta, as opposed to the man expected to be nominated take his place, General David Petraeus. But the White House has not said anything. Members of Congress have been trying to persuade Panetta to stay in his current position, because of his history of working well with Congress. On the other hand, he may according to some experts bring that same spirit to the Pentagon.