Exclusive: American astronaut speaks out about extended time in space

American astronaut Suni Williams said she was in good health despite online speculation she had lost weight. In an exclusive interview, Williams said she was eating well and working out. She said she wished she and Butch Wilmore had been able to go home on the Boeing Starliner, which faced problems after flying them to the International Space Station. NBC News' Lester Holt reports.