America's oldest bombers have officially been flying for the Air Force for 70 years

The US Air Force has plans and upgrades to keep the B-52 active into the 2050s. U.S. Air Force photo/Tech. Sgt. Richard P. Ebensberger The B-52 Stratofortress, America's oldest bomber, is celebrating another decade in service this year. The plane has seen action in a number of conflicts and…