text:  Now 63, Chuck is taking his life in a new direction. He's come up with a Pilates exercise book called Rap Pilates for people over 40. Well, how are you going to fight anything if you're not in shape? Public Enemy was always that group that would wear you out watching it. To do that over a long period of time, you've got to train for it. Chuck D was speaking to me, Matt Pintus, for Witness History.