NASA looks to return astronauts to the moon

Fifty years ago today, astronaut Neil Armstrong became the first person to walk on the surface of the moon. Now, for the first time since the Apollo program ended in 1972, NASA is planning an ambitious launch in 2024 to return astronauts to the moon, and to sustain a human presence there by 2028. Hari Sreenivasan reports from the Johnson Space Center in Houston, Texas.