I personally don't approve of what Wikileaks is doing.
I support freedom of speech, but there is a reason the government keeps things, like many of the thousands of 'leaks' Julian has released, secret. These leaks endanger national security.
This will discourage informants that are vital for American military operations. It endangers the informants, which is mainly the discouraging factor.
It also exposes congressmen and the inner workings of our government to any and all eyes. Eyes that belong to terrorists, economists, military strategists, everybody.
So, as I said, I'm all for freedom of speech and that sort of thing, but you have to view this from a mature standpoint: we as citizens do not necessarily need to know all of those details. And that's why we don't, for the most part.
So.. I approve of restrictions on governmental information that we don't need to know.