Colorado man Les Baugh got two bionic arms attached from shoulder level this summer, 40 years after losing both arms, as part of a Revolutionizing Prosthetics Program test run at the Johns Hopkins Applied Physics Laboratory. Baugh is the "first bilateral shoulder-level amputee" to wear two MPLs at the same time. Unlike Jan Scheuermann who controlled a robotic arm with a pair of neural implants, though, Baugh had to undergo a procedure called targeted muscle reinnervation, which reassigned the nerves that once controlled his arms and hands. (Engadget)