Clearly a very smart guy, that went very far in the NSA -- and for a long time felt he was doing "the right thing" -- but eventually quit because of what the NSA were doing.
edit: He also touches on how compartmentalization leads to people not knowing what they're actually working on/how it will be used in some cases.
http://www.youtube.com/watch?v=FOFtQ6n3WR4
Clearly a very smart guy, that went very far in the NSA -- and for a long time felt he was doing "the right thing" -- but eventually quit because of what the NSA were doing.
edit: He also touches on how compartmentalization leads to people not knowing what they're actually working on/how it will be used in some cases.