, chris dodge, says, i don't believe nobody has lost sleep thinking that our markets are not guarded and the financial crisis rattled that and one of the reasons we needed to come back strong with dodd-frank to reassure the world that our markets were in fact, most protected while allowing for that innovation. how did you handle that balance? what did you learn from your time and what do you think the future of regulation should be as the clip of invasion innovation seems to be on a curve? >> i couldn't agree more with senator dodd and i think that's right, that the u.s. markets are the most liquid, transparent, deepest and desired in the world because of regulation. and there's always going to be issue around the margins of what's right, what's wrong, fixing the regulation ear or there, but ultimately the comprehensive regulatory structure, perhaps the multi-regulatory landscape is the reason the u.s. markets are the best, partly the best in the world and most desired in the world. on the hegemony point, you've said this, commodity markets are priced in dollars, this is oil, this is wti, this is all of our agricultural complexes, corn being -- wheat, everything in between the metal