Terry Gross

Widely considered on of the greatest tennis players of all time, Andre Agassi admits in a new autobiography that he hates tennis, "with a dark and secret passion." Always has. He's here to talk with host Terry Gross about what he calls the "contradictions" at the core of his life.

Advances in military medicine mean that more soldiers are surviving on the battlefieled, but many are coming home with missing limbs. When they come home, those soldiers turn to Colonel Paul Pasquina, medical director of the amputee program at Walter Reed Army Medical Center for the latest in in prosthetics.

When Marine engineer Jonathan Kuniholm returned to his industrial-designed shop after a tour of duty in Iraq, one of his first projects was personal: He wanted to improve on the design of the prosthetics he'd been using since he lost part of his right arm in an ambush. Kuniholm and his colleagues founded the Open Prosthetics Project, an open-source collaboration that shares its innovations freely.