In Pennsylvania, there's an industrial revolution going on. Battalions of drilling rigs are boring into the earth to extract natural gas from an underground layer of shale called the Marcellus formation.
And as the wells multiply all along the western end of the state, people worry they may be facing another toxic legacy.
The first one came from coal mining. All over the state, you can see bright orange rivers and streams. The aquatic life was killed by acidic runoff from abandoned mines.
A recent study projects that more than 40 percent of Americans will be obese by the year 2030. Host Michel Martin delves into the cultural factors that might be preventing African-Americans and Latinos from losing weight. Martin speaks with Jane Delgado of the National Alliance for Hispanic Health, and Jenee Desmond-Harris of The Root.
As the election year began, conventional wisdom was pretty well set about the outcome of the presidential race. If the economy improved, President Obama would win. If not, he'd be a one-termer.
So what does it mean that many big economic indicators are moving sideways?
"Obama seems to be in that gray area," says Paul Pierson, a political scientist at the University of California, Berkeley. "The numbers are neither so good nor so bad that they give you a definitive answer."
The spiraling drug violence is increasingly affecting journalists, in a country considered one of the most dangerous for reporters. Host Michel Martin speaks with Jose de Cordoba of The Wall Street Journal, and Carlos Lauria of the Committee to Protect Journalists. Advisory: This segment may not be comfortable for some listeners.