At Resource Management's Materials Recovery Facility, workers pull plastic bags, other trash and large pieces of cardboard off the conveyor belts before the mixed, single-stream recyclables enter the sorting machines. Véronique LaCapra/St. Louis Public Radio hide caption

itoggle caption Véronique LaCapra/St. Louis Public Radio

Homeowners sit in a conference room in Detroit's Cobo Center while waiting for their cases to be heard to avoid foreclosure from tax debts in Detroit on Jan. 29. This year, Wayne County officials sent out 62,000 foreclosure notices to city homeowners behind on property taxes. Paul Sancya/AP hide caption

itoggle caption Paul Sancya/AP

Cushing, Okla., is a major oil storage site. Amid record oil production, some analysts worry the U.S. will run out of places to put it all. Daniel Acker/Bloomberg via Getty Images hide caption

itoggle caption Daniel Acker/Bloomberg via Getty Images

A couple enjoys the view of Singapore's financial center. Conservatives saw Singapore as a free-market success story, but Lee Kuan Yew's government played a big role in the economy. Wong Maye-E/AP hide caption

itoggle caption Wong Maye-E/AP

A riot late last month forced officials to close the Willacy County Correcitonal Center in Wallcy County, Texas. John Burnett/NPR hide caption

itoggle caption John Burnett/NPR

Known by the nickname "Wall Street," Curtis Carroll teaches financial literacy at the San Quentin Prison, helping inmates prepare for life after incarceration. Carroll, however, is serving a life sentence. Courtest of The California Department of Corrections and Rehabilitation hide caption

itoggle caption Courtest of The California Department of Corrections and Rehabilitation