Chris gets a no-prize that'll bloody well ring freedom wherever it pleases for bringing us news that a silicon valley billionaire is out to create himself some countries: "Pay Pal founder and early Facebook investor Peter Thiel has given $1.25 million to an initiative to create floating libertarian countries in international waters, according to a profile of the billionaire in Details magazine."
The experiences of Sealand may be instructive here. I'm not sure just how serious the guy is, but hey, it's his money, he can spend it how he pleases. That said, these things will only survive at the pleasure of the US Navy. I would expect them to be able to hold off your garden variety pirate raid, but a determined state could easily overwhelm them. Still, it's fun to think about!