Not incredibly difficult to figure out: Mutum Sigilum has been used to funnel Dwolla in and out of Japan for years now. Isn't it convinient that just a few weeks (or maybe not even a week?) from Coinlab lawsuit GOX gets this?
Coinlab agreement was precisely to handle US customers under a more legit frame. How convenient the Feds do this just now!
People will say I am a crazy conspiracy theorist. Think what you will. There is a smoking gun and it points out to Coinlab.
DISCLAIMER: I could give two shits about GOX, and CoinLab. I don't like either. What sucks is that this is going to put a serious dent on Bitcoin after these news are digested fully.
Let's be fair before accusing entire corporate entities of being rats. If MtGox were raided by Japanese authorities I highly doubt people would be claiming "MtGox rates out Coinlab to Japanese authorities". I mean honestly, as if they'd be given some kind of choice? The authorities don't need you to rat anything out, they just raid in public and make a scene or search you secretly, and when they collect enough evidence they move in.