BFRH 2023 12 15: Protected Species, Part One; and Tinker by Wen Spencer, Part 30. Video at https://www.baen.com/podcastfiles/mp3/video-baen-free-radio-hour-Protected-Species-1-Tinker-Part-30.mp4 and at https://www.youtube.com/channel/UCjV7Nn4-bkB48wDjtobIuPQ.