President Obama remarks on his proposal to tighten consumer protections for people saving for retirement as Sen. Elizabeth Warren and Labor Secretary Tom Perez listen, at AARP on Monday. Getty Images hide caption

itoggle caption Getty Images

A trader stands outside the New York Stock Exchange on Oct. 31, 2012. Timothy A. Clary/AFP/Getty Images hide caption

itoggle caption Timothy A. Clary/AFP/Getty Images

A wall in Buenos Aires, Argentina, displays posters with an image of U.S. Judge Thomas Griesa and a message in Spanish — "Sovereignty or vulture scam" — in support of Argentina's government in its dispute against a U.S. hedge fund, known locally as a "vulture fund." Natacha Pisarenko/AP hide caption

itoggle caption Natacha Pisarenko/AP

A man stands in line at Miami International airport to board a charter flight to Havana, Cuba. Travelers often fly to Cuba from the U.S. with piles of goods, despite a decades-long trade embargo. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR