Norah O’Donnell says final goodbye as CBS Evening News anchor. Show relaunches on Monday

Norah O'Donnell signed off Thursday night as anchor and managing editor of the CBS Evening News.
It brought an end to her 5-year run as she begins her new role as senior correspondent.
A brand-new CBS Evening News relaunches on Monday at 6:30 p.m.
CBS News Anchor Kristine Johnson reports more on what to expect.