So possibly U.S officials just stopped the access of exchange/change ..
I quite doubt that. If they have indeed taken over control of their servers and everything, we at least would see a statement on the front page stating that it has been taken down by x agency -- that's how things go usually. I seriously think that the co starter/partner of btc-e is still in full control of everything. But then again, what value does it have when the exchange might never pop up allowing people to cash out? Zero. Not that I believe much will change, but there is not much to do other than to wait what will happen in the coming 5-10 days as btc-e stated.
I doubt that his partner (if any) will continue run the btc-e with such news, even agency will not against them again after that, but the potential still there. Also community will not trust them to hold their asset and trade there. Just say goodbye for btc-e
And if there still any fund that not control by agency, i think those will be stolen (read: keep it safe) by someone inside