and in case that source isn't reliable enough for you, try the FT http://www.ft.com/cms/s/0/b2373a36-b6c2-11df-b3dd-00144feabdc0.html http://www.ft.com/cms/s/0/

and in case that source isn't reliable enough for you, try the FT http://www.ft.com/cms/s/0/b2373a36-b6c2-11df-b3dd-00144feabdc0.html http://www.ft.com/cms/s/0/b2373a36-b6c2-11df-b3dd-00144feabd... HFT has chilling associations with the “flash crash” of May 6, when rapid, computer-driven orders were seen as a main culprit in sending the Dow Jones Industrial Average down by 1,000 points in 20 minutes – a fall unprecedented in its depth and speed. “We want to be able to look them in the eye and say the market is fair. And unfortunately, at the moment it’s quite difficult to do that.”