U.S. Navy photo courtesy Lockheed Martin via Getty Images
The long and tortured history of the F-35's has taken another turn for the worse as the Pentagon on Thursday ordered the entire F-35 Lightning II fleet grounded. The move comes two weeks after a jet caught fire during takeoff at Elgin Air Force Base in Florida. The jets, made by Lockheed Martin, were due to make their international debut in Britain on Friday.