I would guess the US government is pissed off like never before because of this. ^^ The US loves to control stuff.. at least that's what the rest of the world thinks.

I keep my fingers crossed that MtGox gives the US govt as close to nothing regarding customers' credentials and similar info. I do believe that's actually the case. Japanese as well as the chinese purposely perform less than their potential when they know it would result in gains for another country or a company that was founded by another country. This mentality I've noticed a lot when I've worked abroad in these countries... I think it's part of their culture, to be such nationalists and do everything they can to favour their motherland. I encourage this!