 Jad Radiolab, back to Heather Radke and Matt Kielty and their story about Maurice Helleman, a.k.a. the father of modern vaccines, a.k.a. the vaccine master. One other thing, he also was a profane man. Oh, really? Yes. There were so many f***ing things that could happen. God damn, damn this guy. I thought he was a piece of s***.