WTF ! If the US decides to go after Bitcoin in a big and more overt way then they could disrupt transactions which go nowhere near a US bank.
Whatever makes you think that a US Dollar transfer would go nowhere near a US bank? For a brief description of how international wire transfers work, see this post on the Bitcoin Foundation's blog:
https://bitcoinfoundation.org/blog/?p=63It's a fiat currency after all, so it only exists because because the US says it does. And only US banks (or US branches of foreign banks) have access to the Federal Reserve system. This isn't unique to the US and the US Dollar, BTW - it's just how fiat currency works.
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