Wadah Khanfar, Al-Jazeera's director-general, is seen during a ceremony marking the 10th anniversary of the launching of the Arabic satellite news channel in Doha. This photo was taken in 2006.
Karim Jaafar/AFP/Getty Images
Republican presidential candidates debate in California on Sept. 7. NBC's Brian Williams says a moderator's persistence can reveal which questions candidates want to avoid.
Kevork Djansezian/Getty Images
Former Vice President Al Gore trains a group of presenters for the 24 Hours of Reality project. The online program will stream live online from 24 locations worldwide.
Courtesy of the Climate Reality Project