When you tell someone a medicine for dogs cured your cancer, you better be ready for some skeptics, but Joe Tippens says it saved his life, and the lives of others. Now, even cancer researchers are open to the possibility it might be true. "My stomach, my neck, my liver, my pancreas, my bladder, my bones -- it was everywhere," Tippens said. Tippens said he was told to go home, call hospice and say his goodbyes two years ago. The doctors were unanimous, he was going to die of small cell lung cancer. "Once that kind of cancer goes that...