A 3-year-old paralyzed Kentucky boy has learned to walk again after trying a therapy that was financed by the Christopher Reeve Foundations' Neuro-Recovery Network. "The spinal cord itself has a great capacity to learn, to remember, to forget and to make decisions," Harkema said. "And the spinal cord can do that even when it's disconnected from the brain."The therapy re-teaches the spinal cord...