Tomorrow's squadron leaders will be accompanied by drones

JULY 16th sees the opening of the Farnborough air show. Plane spotters attending the show, which by entente cordiale alternates annually with that in Paris, will be hoping for an appearance by one of the F-35 Lightning fighters delivered recently to Britain's air force and navy. The F-35 represents the best that the present has to offer in aerial military technology. The minds of visitors from the aerospace industry and the armed forces, though, will mostly be on the future--and in particular wh...