In 2011, the U.S. Defense Department planned to retire the U-2 and have unmanned Global Hawk drones take over high-flying missions. But, that didn't happen. In fact, the planes are still very much in use today. This photo shows a modern-day U-2.
August 15, 2013 9:27 PM PDT
Photo by: Lockheed Martin
| Caption by: Dara Kerr
Conversation powered by Livefyre