The one complicating factor is that, while Bletchley Park is undoubtedly a historical military eavesdropping and decryption post, it has the advantage of no known super-creepy domestic activity or political dirty trick applications, and it was spying on Nazis. It’s hard to think of any outfit that you can dislike with a cleaner conscience than those guys.
I don’t know what the demographic makeup of Bletchley Park’s supporters is (whether they skew more in the direction of ‘interested because of their background in being a creepy spook’ or ‘interested because they are a geek, and this is one of The Historical Sites of computing’); but, if the people involved wanted to, it would not be difficult to put Bletchley Park’s activities in the heroic light of moral clarity, in spite of (or even directly by taking some shots at) the current state of electronic surveillance.
