Rep. Cole speaks as U.S. Secretary of Homeland Security Janet Napolitano and others listen during a news conference in Moore last week. Brett Deering/Getty Images hide caption

President Obama, with Education Secretary Arne Duncan at his side, calls on Congress on June 21, 2012, to stop interest rates on student loans from doubling. He is going to make that appeal again Friday. Susan Walsh/AP hide caption

Channel-billed toucans are important seed dispersers in rain forests. Courtesy of Lindolfo Souto/AAAS/Science hide caption

This photo shows a heavily logged concession affiliated with Asia Pulp and Paper, or APP, one of the world's largest papermakers, on the Indonesian island of Sumatra, in 2010. Romeo Gacad/AFP/Getty Images hide caption

A Syrian soldier walks through the hotly contested city of Qusair on May 22. The Syrian army, backed by Lebanon's Hezbollah militia, has been waging a fierce fight with rebels in the key western city for the past two weeks. STR/STR/AFP/Getty Images hide caption

A construction worker paints walls at the Maryland Proton Treatment Center in Baltimore. Each of the center's five rooms will contain a massive piece of equipment that will rotate around a cancer patient to deliver a special kind of radiation. Jenny Gold/Kaiser Health News hide caption

Peter Obetz (left) and Jeff Jarrett met in 1998 and are still close friends. Peter was diagnosed with stage IV esophageal cancer in 2004. He was declared cancer-free in 2009. They visited StoryCorps in Kansas City, Mo. StoryCorps hide caption

Whenever a steer or cow leaves a farm in Michigan or goes to a slaughterhouse, it passes by a tag reader, and its ID number goes to a central computer that keeps track of every animal's location. Dan Charles/NPR hide caption