Dr. Luke Lavis is a chemist who creates new colors. His work on fluorescence and tagging makes scientific and medical breakthroughs possible. Also, it looks really cool. Comedians Matt Porter, Charlie Hankin, and Shalewa Sharpe learn about the mysterious world of chemical tagging and why it might save our lives. Hosted by Chris Duffy. Recorded at Wabash College. Produced by Pretty Good Friends.