Archive on 4 - Pete Seeger at 90

Vincent Dowd celebrates the life and work of American folk singer and activist Pete Seeger, as he turns 90. Drawing on BBC archives and new interviews, Vincent explores Seeger's continuing efforts to improve the world through the power of song. He hears Seeger's views on a range of issues and his hopes for the future under the leadership of Barack Obama, at whose inauguration he performed. Featuring some of the musicians who have interpreted Seeger's songs, including Marlene Dietrich, Joan Baez and Bruce Springsteen, and an unplugged version of This Land is Your Land by Seeger himself.