Admiral Grace Hopper’s landmark lecture is found, but the NSA won’t release it.

In a vault at the National Security Agency lies a historical treasure: two AMPEX 1-inch open reel tapes containing a landmark lecture by Admiral Grace Hopper, a giant in the field of computer science. Yet this invaluable artifact remains inaccessible, trapped in an obsolete format that the NSA will not release, stating that the agency is unable to play it back.