can create and trade in these ri without that we are proposin proposing. >> well, look, you have to strike a balance of which things you're going to do and where you need to press. but as regards trading on exchanges, there are many things now, many types of derivatives that trade quite comfortably on exchange. there are many types of derivatives where making them transparent has not ruined the market in any way. we should be mindful not to drive productive activities overseas. the president has been mindful of that in a lot of areas not just in finance. but the argument that because there's some bugaboo that we don't want to lose the transactions to somewhere else, we're not going to change anything. let's stick with the status quo that threatened to almost blow up the world, i just don't think that makes any sense.