Mark Warner actually said...

"I think one of you all raised what about the adverse selection issue."

"I would just strongly urge you... that we would have a lot more knowledge if we could actually get the tick size project out."

"The notion of how can we help some of those companies along the way move on that path is terribly important."

"I would agree as well that if we were going to go down this path, you need to concentrate these trades on a single exchange."