It is a good summary but a bit murky on the crimes themselves. There is both a criminal and and civil side to DOJs case. The criminal side rests primarily on operation an illegal gambling business and rests primarily on the Unlawful Internet Gambling Enforcement Act. However the civil side, which may bankrupt the companies, carries $3 billion in penalties for violating money laundering penalties. If one reads this article one misses completely the fact of the civil case which rests on the companies disguising money received from US players as payments to online merchants selling such things as jewelry and golf balls!