David Frost: A look back at the Nixon interviews

Sir David Frost, who has died at the age of 74, was one of the legendary figures in world broadcasting, but he also was to become one of the players on that vast stage known as Watergate. Here's a look back at my interview with Sir David in 1994, on the eve of the 20th anniversary of Richard Nixon's resignation. The Frost intervews with Nixon were both controversial and historic....