This morning we wrote that DARPA is about to decide whether to continue development of the world's most advanced prosthesis, now called the Luke Arm. A press release from the Johns Hopkins Applied Physics Laboratory announcing $31 million of funding from DARPA, and Hopkins' leading role in the next stage of development, sounds like a bright green light for the project. The Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md., has received a contract from the Defense...