Endeavour's Last Ride: Countdown to the End of the Shuttle Era

Tomorrow's launch of Endeavour will be the second-to-last in America's space-shuttle program, which has lasted for 30 years. The is expected to draw up to a million people, including President Obama, who will be making his second visit to the Kennedy Space Center, bringing his wife, Michelle, and daughters Sasha and Malia. Recovering Congresswoman Gabriel Giffords, whose husband Mark Kelly will command the Endeavour, will be there as well. We talk with former astronauts about privatizing the space program.