If you have read the whole story of Silk Road they didn't busted them for bitcoins but for drug trading. And they explicitly stated there were legitimate uses.

If you have read the whole story of Silk Road they didn't busted them for bitcoins but for drug trading. And they explicitly stated there were legitimate uses. From what I have read the current Fed stance is - if you think BitCoin is money, we are ok with that as long as you comply with all regulations.