good interview, says the need for liquidity is bogus because everyon who's hooked into the internet is trading these days. Says high frequency trading is putting trading out of business.
Part 1 (8:31)
http://www.youtube.com/watch?v=UDqC2A-Pdx4&feature=player_embedded#!
Part 2 (8:47)
http://www.youtube.com/watch?v=rOWima8yGGM&feature=player_embedded