Julian Assange isn't really the left-wing anti-US bogeyman some here seem to think. He's an "information wants to be free" libertarian type; Wikileaks also hosted (but did not originally leak) all those emails of climate scientists that caused the bullshit uproar last year. He's also noted his next target will be a leak from a major bank showing its illegal business. I have no doubt he'd release a leak from, say, Germany were he to come into possession of it.
Moreover, it's worth noting (because god knows the media doesn't) that the diplomatic cables released on Wikileaks were a) only a small fraction of the hundreds of thousands of cables that were leaked (most have yet to be revealed), and b) were limited to those that were published first by newspapers, and included the redactions those newspapers had applied. He did not just undiscriminatingly dump all the files he had, as most people seem to think (and as many of his supporters would have done).
Moreover, it's worth noting (because god knows the media doesn't) that the diplomatic cables released on Wikileaks were a) only a small fraction of the hundreds of thousands of cables that were leaked (most have yet to be revealed), and b) were limited to those that were published first by newspapers, and included the redactions those newspapers had applied. He did not just undiscriminatingly dump all the files he had, as most people seem to think (and as many of his supporters would have done).