The film tells the story of five journalists who fought to reveal the truth about the Vietnam War. They all went on to win Pulitzer Prizes.
A sheet of ice, twice the size of Manhattan, broke of from a glacier in Greenland this week.
The new iceberg measures 46 square miles. In 2010, the Petermann Glacier lost chunk of ice measuring 96 square miles. The loss of glacier mass in Greenland, which has seen warming temperatures, has scientists concerned.
Experts share a range of perspectives on how to combat the Islamic State militant group, and the role the U.S. should play.