Apologetic signs posted at a gas station that ran out of gas on Nov. 1, 2012, in the Queens borough of New York. Jason DeCrow/AP hide caption

itoggle caption Jason DeCrow/AP

The Deepwater Horizon oil rig is seen burning in the Gulf of Mexico in April 2010. A second phase of the BP trial, which started this week, looks at just how much oil spilled into the Gulf. Gerald Herbert/AP hide caption

itoggle caption Gerald Herbert/AP

Susan Mull is a substitute teacher in Lancaster County, Pa. She's lived with HIV for 21 years, the past 13 without health insurance. She says an expansion of Medicaid in Pennsylvania would be "life-changing." Jeff Brady/NPR hide caption

itoggle caption Jeff Brady/NPR

One Amish family in Lancaster County, Pa., has three horse-pulled buggies they store in a barn. They all have electric lights powered by rechargeable batteries. One of the buggies even has battery-powered windshield wipers. Jeff Brady/NPR hide caption

itoggle caption Jeff Brady/NPR

Sara Busch of Havertown, Pa., owns a Chevy Volt, an electric hybrid. Like a lot of Americans, she's buying less gasoline than she used to, which means she's paying less in gas taxes. Jeff Brady/NPR hide caption

itoggle caption Jeff Brady/NPR

Penn State hopes to reduce its health care costs by helping employees become healthier. But some faculty members complain that charging them $100 a month for refusing to participate in a health improvement program is unfair. Jeff Brady/NPR hide caption

itoggle caption Jeff Brady/NPR