What made the 2014 World Monument Watch List and why?

They are under threat from war, the environment, economic development and more: 67 sites in 41 countries on the 2014 World Monument Watch just released Tuesday. PBS NewsHour’s Jeffrey Brown spoke with Bonnie Burnham, president of the World Monuments Fund, a non-profit organization that issues the annual list and dedicated to preserving endangered historic, architectural and cultural sites.