A year ago, before the initial public offering of stock, Nasdaq and Facebook were quite excited. Emmanuel Dunand /AFP/Getty Images hide caption

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Mary Jo White, then U.S. Attorney for the Southern District of New York, speaks during a May 2001 press conference following guilty verdicts in the trial of four followers of Osama bin Laden that bombed two U.S. embassies in East Africa in 1998. President Obama intends to nominate White to head the Securities and Exchange Commission. Doug Kanter/AFP/Getty Images hide caption

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Mary Jo White, who President Obama wants to lead the Securities and Exchange Commission. Brendan McDermid /Reuters /Landov hide caption

itoggle caption Brendan McDermid /Reuters /Landov

Mary Schapiro, chairman of the Securities and Exchange Commission, and Gary Gensler, chairman of the Commodity Futures Trading Commission, before a June congressional hearing. Both agencies adopted hundreds of pages of rules this week. Saul Loeb/AFP/Getty Images hide caption

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