Simon Johnson has always been one of my favorites.
he has been unabashedly critical of big banks. i've read his book:
13 Bankers.
it's excellent and he is one of the few high profile economists that has stuck his neck out against the corrupt banking system as it is. i wonder how well he understands Bitcoin however. one would think that b/c he is on staff at MIT he would understand it well.
but i agree with BitChick above that it's too late. with the ROW onboard, especially China, there is nothing the US gov't can do at this point to stop Bitcoin.
but i'm sure there will be plenty of ppl who will be scared off by SJ's comments. so be it; this is Bitcoin's Tension.