What site is it? If it's Stars or Tilt, I wouldn't think there would be a need to worry so long as you don't need it right away. These sites make too much money and don't want to lose customers. The only real threat to their business are things like hurting their integrity like cheating or not paying out. They have too much of an investment to not figure out a way to pay and if the check is coming from a bank, I don't see how anyone can prevent it.

Does anyone have more technical details on what funds were seized and on what grounds? It was my understanding that playing poker online isn't illegal nor is withdrawing - the legal implications surround depositing and they are aimed at institutions.

I think someone should start a thread or use this one to figure out a reasonably easy way to set-up a bank account off shore like England and use it to get funds in and out of sites and in and out of your American account. Doing that would theoretically put ALL sites in play and get all these USA hassles off our back.