Workers line up pipe while drilling for oil outside Watford City, N.D. While the energy sector has been strong, millions of Americans have been out of work since the recession ended. Andrew Burton/Getty Images hide caption

itoggle caption Andrew Burton/Getty Images

A traveler collects his bag from a luggage carousel in the Philadelphia International Airport in 2011. Baggage fees have helped financially desperate carriers stay aloft. Matt Rourke/AP hide caption

itoggle caption Matt Rourke/AP

A police photograph shows burned and wrecked crude oil carrying rail tankers piled up in Lac-Megantic, Quebec, on Monday. Dozens of people died in the disaster. EPA/Landov hide caption

itoggle caption EPA/Landov

A Smithfield ham at a grocery store in Richardson, Texas, in 2011. Some senators expressed qualms Wednesday about the intentions of Shuanghui International Holdings, which is buying Smithfield Foods. LM Otero/AP hide caption

itoggle caption LM Otero/AP

Jeff Caldwell checks a vehicle on the assembly line at the Chrysler Jefferson North Assembly plant in Detroit in May. U.S. auto sales rose last month to their fastest pace since 2007. Paul Sancya/AP hide caption

itoggle caption Paul Sancya/AP

Jim White of Pennsylvania pumps gas at a BP station in Ocala, Fla., in April. The price of gasoline remains stubbornly high, which may put a crimp on summer travel plans. Doug Engle/Ocala Star-Banner / Landov hide caption

itoggle caption Doug Engle/Ocala Star-Banner / Landov

A 2013 Accord is ready to come off the line at the Honda automobile plant in Marysville, Ohio, in 2012. Accords built at the 4,400-employee plant are shipped to South Korea — an example of the importance of trade to manufacturing jobs. Paul Vernon/Reuters/Landov hide caption

itoggle caption Paul Vernon/Reuters/Landov

Shoppers walk along Broadway in New York City. Retailers added 28,000 in May amid signs of strength in consumer spending. Spencer Platt/Getty Images hide caption

itoggle caption Spencer Platt/Getty Images

Smithfield hams hang outside the Taste of Smithfield restaurant and gourmet market in Smithfield, Va. Shuanghui International Holdings plans to buy Smithfield Foods, the world's biggest hog producer. Rich-Joseph Facun/Reuters/Landov hide caption

itoggle caption Rich-Joseph Facun/Reuters/Landov

By leasing land for drilling, city leaders in Youngstown, Ohio, hope to generate funds to demolish vacant buildings. M.L. Schultze for NPR hide caption

itoggle caption M.L. Schultze for NPR

More passengers are expected to fly on U.S. airlines this summer, an industry group said Thursday. David McNew/Getty Images hide caption

itoggle caption David McNew/Getty Images

Travelers stand in line at Los Angeles International Airport on Monday. Congress moved quickly this week to give the Federal Aviation Administration flexibility to end air traffic controller furloughs that resulted in flight delays at several airports. Damian Dovarganes/AP hide caption

itoggle caption Damian Dovarganes/AP