Tap Code: The Epic Survival Tale of a Vietnam POW and the Secret Code That Changed EverythingEbookTap Code: The Epic Survival Tale of a Vietnam POW and the Secret Code That Changed EverythingbyCarlyle S. HarrisRating: 5 out of 5 stars5/5Save Tap Code: The Epic Survival Tale of a Vietnam POW and the Secret Code That Changed Everything for later