Medical equipment

State-of-the-art prosthetics have caused controversy in sports, and raise questions about what it means to be human.

Emergency responders applied tourniquets to many of those injured by the explosions at Monday’s Boston Marathon. The device had fallen out of favor with the medical establishment, but the American military experience in Iraq and Afghanistan changed that.

Oscar Pistorius was a sports hero. Trooper Johnson is a member of the U.S. National Wheelchair basketball team and has competed in four Paralympic Games. He speaks with anchor Aaron Schachter about what Pistorius meant to the Paralympic movement.

Charlie is the protagonist of Machine Man, a novel by Max Barry. But his story has a real parallel in Hugh Herr, a leading bionics developer at MIT, and a double amputee following a mountain-climbing accident.

Marco Werman talks to John Register, a four-time All American and two-sport Olympic class athlete who completed both before and after losing a leg.