After eight days in space, astronauts Neil Armstrong, Edwin "Buzz" Aldrin and Michael Collins returned to Earth to a hero's welcome. In 1969, the three men sat down with CBS News for their first television interview. Now 88 years old, Collins reflects on the legacy of Apollo 11 with CBS News' Mark Strassman. Historian Douglas Brinkley and flight director Gene Kranz discuss what should be the space program's next moonshot.