Things have to be bad if you are prepared to allow someone to put feces in your brain. This was the case for three brain cancer patients at the University of California-Davis Medical Center, who consented to the highly experimental procedure. But the doctors who performed the implants were fined by the state’s Department of Public Health anyway. The three patients all had end stage glioblastoma multiforme, which is a fast growing type of brain tumor. They had not responded to conventional treatments, including removal of the tumors, so doctors suggested the new, untested treatment, which involved placing bacteria from...