Lester Holt's New Chapter: From Nightly News to Dateline

Lester Holt is moving on from his role as the anchor of "NBC Nightly News" this summer. He will continue to lead "Dateline NBC, " a prime-time news magazine show. Holt has been a key figure at NBC for the past ten years. He became the first African-American solo anchor of a weekday network nightly n