So let's say you aren't doing anything remotely shady and plan to pay your taxes like a normal citizen, but you believe the world and particularly the US could implode into a police/socialist state any day, how would you structure your company to GTFO/disappear with as little interruption in operations and cash flow as possible should it all go to hell?
Do you go off-shore for everything (hosting/registrar/banking/incorporation) What do you see as the most hassle free way to keep your assets protected in a SHTF scenario? While I don't need it now, or hopefully ever, I'd like a pictures-of-oprah pooping-acai-berries level of protection if I can do it without an insane amount of hassle.
Assuming you already know you are still on the hook for U.S. taxes for at least 10 years, and you want to keep a U.S. passport...
Keep your current host, but mirror your site(s) on an offshore host as well, then just point your arecord with an EasyDNS-type tool, so that if your U.S. one goes down/shuts you off, you can repoint and be back up and running in about 1 hour.
Banking, there are a few options, though U.S. citizens are at a disadvantage, most overseas large/stable banks are leery of the long-reach of U.S. jurisdiction, and will naturally assume you are doing something shady. You can still get bank accounts in the Seychelles, Channel Islands, Bermuda, etc if you really know what you are doing. If you don't want to use/keep a U.S. passport, there are ways to buy a St. Kitts one relatively easily, which does make the banking side easier.
Shelf corps from any of a few dozen jurisdictions are a simple matter, and have the bonus of often being in warm sandy beach-type places if you want to be in the area, but its not a prerequisite. You can have these pre-formed, with a similar name to your US corp, and be ready to roll on pretty short notice.
Since avoiding taxes doesn't seem to be your concern, just an Armageddon-type meltdown of society as we know it, the question becomes: if the U.S. , being a comparatively stable capitalist nation, goes to hell in a handbasket, its a good bet that there aren't many safe places left in the world, so a lot of what would be the best approach now might not be the case in such a scenario.