Report: SEC takes aim at Wall Street's risky business

While fear may not be the exact inspiration for the SEC's latest batch of regulatory proposals, some key players have been sounding the alarm, pointing to an inherent systemic risk in many of Wall Street's latest practices.

Sen. Ted Kaufman (D-Del.) began pushing for the intensive financial reform of some of these high-risk practices late last year. He cited the risk of yet another financial crisis due to "new practices which are leading to new problems and new systemic risks."

Here are the core practices the SEC is working to regulate, and how each could potentially create a "systemic risk."