Spinal-cord stimulators help some patients, injure others

Jim Taft watches The History Channel from the confines of his bed.
Jim Taft watches The History Channel from the confines of his bed at his home in West Columbia, S.C. Taft has experienced debilitating health issues after a neurosurgeon implanted Boston Scientific's Precision spinal cord stimulator in his back in 2014.
Sean Rayford | AP