Sochi Olympics; NFL Playoffs '13; John Eliot Gardiner

Journalists David Herszenhorn, Masha Gessen, and Julia Ioffe and academic Stephen Sestanovich discuss the political and social issues facing Russia and President Vladimir Putin in advance of the 2014 Winter Olympics in Sochi. Sports analysts Bill Cowher and Jim Nantz discuss the upcoming games -- Patriots vs. Broncos and 49ers vs.Seahawks -- whose winners will go to Super Bowl XLVIII. John Eliot Gardiner introduces "Bach: Music in the Castle of Heaven," which explores the life and musical genius of Johann Sebastian Bach.