Has a bureau of the US federal government just claimed ultimate authority over the internet's domain name system? If this is the case, then obviously we have a very serious problem on our hands. This threatens the way the internet works at the infrastructure level. Clearly the US needs to be stripped of their root DNS server privileges.
Stop hyperventilating, they did nothing of the sort. .com is based in the United States, and (whether or not you agree with the US's stance on online gambling, I don't) they seized an asset that they claim - probably rightly - is within their jurisdiction and is assisting these companies in committing acts that are illegal in the United States. If they seize a .co.uk, then there's something to be worried about, but a…
In the above case, (almost) no crimes were committed by anyone in an area the US has jurisdiction over; fulltiltpoker.com, at least, could be said to be actively recruiting Americans.