At the Pentagon, the CIA and the war in Afghanistan, the most important personnel shakeup in the Obama Administration. We hear about that and talk with former astronauts about what's next for the government's manned space program after tomorrow's launch of Endeavour.
Banner image: The NASA logo on a protective box for a camera near the space shuttle Endeavour April 28, 2011 at Kennedy Space Center in Florida as preparations are under way for an April 29 launch of Endeavour, which will be its last flight. Photo: Stan Honda/AFP/Getty Images