Must-see morning clip: A millionaire space tourist is on a mission to Mars

What is the greatest reason to pursue science and innovation? For millionaire space tourist Dennis Tito, who wants to fly two people to Mars by 2018, it might impatience. "This brave entrepreneur will send two astronauts to Mars for the noblest reason there is: impatience." Colbert was reminded of John F. Kennedy's famous speech: "We chose to go to the Moon not because it was easy, but come on, how hard could it be."