For more than 30 years, millions of desperate people from around the world -- the sick, the crippled, the terminally ill -- have made a pilgrimage to the remote high plateaus of central Brazil in search of a cure. They travel to see a man who is said to have miraculous healing powers and can supposedly perform surgeries without pain or even anesthesia. His acolytes call him "Joao de Deus" or "John of God." In an hour-long report, "Primetime Live" co-anchor John Quinones travels to Brazil to find out whether these incredible stories can possibly be true, whether "John of...