When I saw "can't comment" I had a moment of hope: visions of every crime show I've ever watched, "we can't comment on an ongoing investigation," etc.
Sadly, no such luck. This was more of a "can't" because it sounds less weaselly than "won't," even though the TOS section on law enforcement says they MAY decline... If I were a cynical guy, I'd say it probably took a lot fewer signatures to get MegaUploads investigated... Of course, those were on checks...
/grumpy