Dexter Filkins; Klaus Schwab; 'Shelter'

The New Yorker's Dexter Filkins discusses ISIS control over western Iraq and the Kurdish region of eastern Syria. Klaus Schwab, founder and executive chairman of the World Economic Forum, talks about this year's theme for their annual gathering in Davos: The 4th Industrial Revolution. Director Paul Bettany and actors Jennifer Connelly and Anthony Mackie discuss their film "Shelter," which depicts a love affair between two homeless people in New York City.