Leo Thompson stands in front of his isolated home, where he has lived for 35 years, on the Navajo Nation reservation. Like an estimated 18,000 Navajos homes, his his isn't connected to the electrical grid — it's a half-mile from the nearest line — and until recently Thompson used a generator for power. Ibby Caputo/NPR hide caption

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Carlton Scott pays $266.99 per month for his subsidized health insurance plan. He worries he and his neighbors would lose their insurance without the subsidy. Jeff Cohen/WNPR hide caption

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Indiana Army National Guard Pvt. Trea Colon inspects her equipment during a field training exercise at Camp Atterbury and Muscatatuck. Sgt. Jeremiah Runser/U.S. Army via DVIDS hide caption

itoggle caption Sgt. Jeremiah Runser/U.S. Army via DVIDS

Intel Corp. co-founder Gordon Moore holds up a silicon wafer at Intel headquarters in Santa Clara, Calif., in 2005. Moore first noted 50 years ago that the number of transistors that can be packed into a computer chip doubles about every two years. That observation, called Moore's Law, has been the basis for the entire digital revolution. Paul Sakuma/AP hide caption

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The U.S. Preventive Services Task Force recommends mammograms every other year, while the American Cancer Society endorses annual scans. Kari Lehr/Image Zoo/Corbis hide caption

itoggle caption Kari Lehr/Image Zoo/Corbis

Jayne Rowse (left) and April DeBoer with their four children, Jacob (from left), Rylee, Nolan and Ryanne at a news conference in March. Valerie Macon/Getty Images hide caption

itoggle caption Valerie Macon/Getty Images