Gyrocopters fly over the capital of the United Arab Emirates, Dubai, during the World Air Games 2015, on December 9, 2015. AFP PHOTO / KARIM SAHIB / AFP / KARIM SAHIBKARIM SAHIB/AFP/Getty ImagesKARIM SAHIB / AFP - Getty Images
Breaking News Emails
Get breaking news alerts and special reports. The news and stories that matter, delivered weekday mornings.