https://peertube.dngr.us/videos/watch/86c8853f-eb0f-45f6-a3c6-d9ead6efe47d Support Our Channel : https://www.patreon.com/PeriscopeFilm Narrated by Dan Rather, and originally broadcast as a segment of the CBS reports television program on March 4, 1964. This film discusses the search for the submarine USS Thresher SSN-593, a nuclear power attack submarine built by the United States navy. The submarine was lost on April 10th, 1963, during deep diving tests approximately 220 miles east of Boston, Massachusetts. This was a watershed event for the United States Navy, leading to the implementation of a rigorous submarine safety program known as SUBSAFE. One hundred and twenty nine crew members and shipyard personnel were killed in the incident, making it the world’s worst submarine disaster. It was also the first nuclear submarine lost at sea. This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD. For more information visit http://www.PeriscopeFilm.com Source: https://www.youtube.com/watch?v=8aZ4udTMlZI Mirrored from Periscope Film (https://www.youtube.com/@PeriscopeFilm) Sat, 13 Jun 2026 05:31:44 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.dngr.us https://peertube.dngr.us/lazy-static/avatars/41a6fee9-7f57-42d0-a5fc-5db4f1af2e31.png https://peertube.dngr.us/videos/watch/86c8853f-eb0f-45f6-a3c6-d9ead6efe47d All rights reserved, unless otherwise specified in the terms specified at https://peertube.dngr.us/about and potential licenses granted by each content's rightholder.