“There is no kill switch.” The Joint Program Office’s direct shoot-down of a long-standing rumor surrounding the F-35 Lightning II was intended to put the rumor to rest. But in the universe of ...

LONDON—A Lockheed Martin F-35 has off-boarded data to a non-U.S. command-and-control system for the first time through joint testing by the company’s Skunk Works and the UK Royal Air Force’s (RAF) ...