sentences:  Obama, knowing that Morell was with Bush on 9/11, sent Morell to Dallas to brief Bush on the raid two weeks after bin Laden was killed.From July 1, 2011 to September 6, 2011, Morell served his first stint as acting director of the CIA, replacing Leon Panetta when he was confirmed as Secretary of Defense.On November 9, 2012, Morell once again became acting director after the resignation of David Petraeus, following a sex scandal.