It is now official, the US deficit of $490b is roughly 3.4% of GDP $14.2 trillion. This means the US fails the second requirement for entry into the Euro as we have already failed the Debt to GDP ratio.
Perhaps a currency block with Mexico and Canada, assuming we could sweet talk them into it.
The black helicopter and tin-foil hat conspiracy theory set already assumes there is a pile of Amero's already out there. I would prefer Nafto's, they sound more snack like and wallet friendly :) I still suggest farmland and Norwegian Krone as interesting stores of value.