Still cracking Kryptos

Activity surrounding Kryptos, the cryptographic puzzle at CIA headquarters in Langley, Virginia, continues to surge. Elonka Dunin who runs a comprehensive Kryptos site, told The Guardian that she used to see 500 visitors a day but recently got 30,000 visits in 24 hours. Of course, interest in cracking Kryptos skyrocketed once it was revealed that The Da Vinci Code dustjacket references the puzzle and that it's part of the plot of Dan Brown's next bestseller, The Solomon Key. (Previous post on Kryptos here.)