Final clue for ‘mystery message’ carving left at CIA HQ 30 years ago revealed

THE final clue to a coded message plonked outside the CIA building 30 years ago has been revealed by the code’s creator. Artist Jim Sanborn built the copper sculpture, known as Kryptos, in a … Source: Final clue for 'mystery message' carving left at CIA HQ 30 years ago revealed – can you crack the …