Bryant Gumbel; Christie Hefner; Louis Rukeyser

Bryant Gumbel talks about transitioning from the "Today Show" to prime-time on "Public Eye with Bryant Gumbel." A conversation with the chair and C.E.O. of Playboy Enterprises Inc., Christie Hefner. Louis Rukeyser, a commentator on "Wall Street Week," talks about his book, "Louis Rukeyser's Book of Lists."