In Moscow's Red Square, people still line up to visit Lenin's tomb. Though the Cold War is over, Russia and the U.S. keep watchful eyes on each other. Tuesday, Russian officials claimed to have uncovered a CIA spy.
Sergei Ilnitsky /EPA /Landov
The nominees: John Brennan (left), who is President Obama's choice to head the CIA; and former Sen. Chuck Hagel, R-Neb., who the president has asked to be secretary of defense.
David Petraeus, while he was the top commander of U.S. and coalition forces in Afghanistan, and Paula Broadwell in July 2011. He resigned from his post as CIA director because of an extramarital affair they had.