Photo-Immunotherapy - A Whole New Way to Beat Cancer

Cancer remains one of the most challenging diseases around the world, and the leading cause of death in a graying Japan. But a discovery by a Japanese researcher has led to a completely new approach that kills cancer while leaving healthy cells untouched. And after very promising initial results, it's about to enter final stage human trials in the US. In this episode, we look at near-infrared photo-immunotherapy, the man who discovered it, and its advantages over conventional cancer treatments.