Super Bowl XLVIII: John Harbaugh on who has the edge in this year's big game

      |Baltimore Ravens Head Coach John Harbaugh, Super Bowl XLVII champion, talks with the "CBS This Morning: Saturday" co-hosts about last year's Super Bowl, who has the edge this year, and why he says he doesn't talk about last year's Super Bowl with his brother, Jim Harbaugh, the San Francisco 49ers head coach.

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