Bob Corker actually said...

We're in some pretty intense meetings right now as we're getting ready to work a markup in our own financial regulation.

So your point is not that they are bad---- it is just that too many of them might be bad.

But there is no problem that--there is no essential problem with the fact that high-frequency trading exists to create price discovery.

It seems to me very much like what existed on the New York Stock Exchange where you would call a specialist, they would make a trade for you...