I think what Wikileaks wants to build is a social graph of influential and powerful people (big enough names to have a blue check mark) using their tweets. Then weight and couple that with information on family relations, job, living place and so on - available from other public sources (i.e. Wikipedia biographies, LinkedIn or official websites).
Sounds like an interesting idea.
But man; Wikileaks is sure getting a lot of negative press. I guess if you want to play the game of politics you better start weighting your words like a politician.