transcription of all 4 Kryptos passages, in case the CIA sculpture page goes down again

archiving this because the official pages on these things have a habit of vanishing and getting 'reorganized'. Kryptos is the Sanborn sculpture sitting in a courtyard at CIA headquarters in Langley, put up 1990. copper plate, ~1800 letters in four sections. K1 K2 K3 cracked years ago, K2 even has a ……