Wall Street is peddling snake oil ? new financial products that are the equivalent of bottles of medicine with labels like “Dr. Bartlett’s Beneficent Balm ? Boon to Mankind” ? and they should be regulated as such, according to University of Chicago professors Eric A. Posner and E. Glen Weyl. The FDA protects consumers from poison sold as medicine and we should do something similar for financial products that “seem at least as extreme as the dangers of medicines,” they argue. (See “How to Prevent a Financial Overdose,” by Gretchen Morgenson, New York Times).