Wall Street 'bewilderment machine' still cranking out products

"Wall Street's penchant for concocting opaque products -- investments that lacked real-time pricing data and were so complex they could only be created and analyzed using computer models -- played an important role in the worst financial crisis since the Great Depression and one that regulatory reform proposals will struggle to curtail. While banks say they're meeting demand from investors for higher returns, critics say it's time to rein in instruments that confuse buyers, carry hidden risks and whose main purpose is generating fees."