The episode was first aired in 2012, but it's being replayed today because it's about resilience and repair. The story is about a man named Tsutomu Yamaguchi who experienced a traumatic event twice. On August 6, 1945, he was in Hiroshima when the first atomic bomb was dropped about a mile away. He survived and took a train to his hometown, Nagasaki. The next morning, he tried to convince his boss that a single bomb could destroy a city, but the second bomb dropped. Author Sam Kean tells the story of what happened to Tsutomu and explains how he managed to survive. The story also explores how gamma rays can shred DNA and how Tsutomu avoided a thousand-year curse. The episode is part of the Radiolab show, which is supported by listeners and foundations like the Simons Foundation and the John Templeton Foundation. Radiolab also has a newsletter and social media accounts where listeners can share their thoughts and get updates about the show.