Whenever something is banned, its price goes UP. 
So please, ban to your evil heart's content.
So please, ban to your evil heart's content.in this case if feds ban BTC (impossible)
prices will go down :p
because there would be no shops around for btc, only few people around interweb will use btc, so ban btc will not make price higher
(my guess)
+1, although they could make it a crime to use BTC, and close all exchanges. BTC wouldnt last very long