Joe Saluzzi of Themis Trading and co-author of the 2012 book Broken Markets: How high frequency trading and predatory practices on Wall Street are destroying investor confidence and your portfolio testified about broken, rigged markets and still revolving doors between finance, regulators and government, to the US House Financial Services Committee (again) yesterday. Nothing fixed yet.
Here is a direct video link to his opening statement.
Also see: U.S. stock market executives tell lawmakers about conflicts in broker rebates.