Senator Richard Lugar; Obama in Russia; Remembering Robert McNamara

Republican Senator Richard Lugar comments on President Obama's announcement that he and Russian President Medvedev preliminarily agree to reduce nuclear stockpiles by a third. Professor Stephen Cohen, former ambassador Thomas Pickering, and journalists Claire Shipman and Chrystia Freeland discuss U.S-Russian relations and Obama's push to "reset" the relationship. Charlie remembers Robert McNamara, former secretary of defense under Presidents Kennedy and Johnson.