BFRH 2023 09 29: Charles E. Gannon on Endangered Species, Part Two; and Tinker by Wen Spencer, Part 19. Video at https://www.baen.com/podcastfiles/mp3/video-baen-free-radio-hour-Endangered-Species-2-Tinker-Part-19.mp4 and at https://www.youtube.com/channel/UCjV7Nn4-bkB48wDjtobIuPQ.