The Doobie Brothers, still going strong

The Rock 'n' Roll Hall of Famers, who've been playing together for more than half a century, don't let old resentments get in the way of a new album and tour. Correspondent Jim Axelrod talks with members of The Doobie Brothers – Michael McDonald, Tom Johnston, Patrick Simmons and John McFee – about the band's longevity, and their first studio album in more than a decade, "Liberté."