U.S. law enforcement officials generally do a good job catching money launderers and fraudsters, but they are understaffed and lack resources, according to Annemarie McAvoy, an adjunct professor at Fordham Law School who specializes in anti-money laundering and counter terrorist finance issues. One problem is that not enough investigators have the knowledge necessary to tackle complex financial crime cases, said McAvoy. She cites the $65 billion pyramid scheme run by Bernard Madoff as an example. Madoff fended off questions about how he achieved returns in his investment fund for years by projecting the image of being an upright citizen of...