“The fifth paragraph seems to be a yet-undefined system that may require an unusual plain-text key. This part may be unbreakable.”
CIA KRYPTOS
Sculpture Study Group
NSA Memorandum
18 November 1991

July 14, 2026 — A Very Special Post for Our 10th Anniversary — Over the last three decades, I have devoted much time to several distinct stories: the CIA Memorial Wall (and the associated Book of Honor), the KRYPTOS sculpture, and the Lockerbie tragedy. In my wildest dreams, I never imagined that these stories would one day converge. Follow us on Twitter: @INTEL_TODAY
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