Make sure you get in on a tour; they are worth it. In addition to the overall information, you will be talking to someone who worked for NSA and did these types of things. There is sooooo much packed into the multiple rooms that you can be overwhelmed. Plan to take your time and read, or if possible go back multiple times so you can absorb things. Great displays, and the best was the opportunity to actually touch an Enigma machine! The Bombe was neat to see, too. Go, take your time, and enjoy; I know we did and we'll be back.
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