Starting this year, competitors in the National Spelling Bee will not only have to know how to spell a word, but they'll also have to know what it means.

Melissa Block talks to regular political commentators E.J. Dionne of The Washington Post and Brookings Institution, and David Brooks of The New York Times. They discuss gun control legislation, immigration and President Obama's budget.

John Curtis never thought he would be able to be a dad. But in 1998 he held his son against his chest. It was "like we fit," he says.

When Tiger Woods tees off at Augusta National Golf Club this week, he will have overcome injuries and personal scandal. But commentator Frank Deford wonders whether a Masters win for Woods would be a comeback or his way of getting back at his detractors.

Host Neal Conan reads from listener comments on previous show topics, including living with adult ADHD, political redemption, and the effects of isolation.

For decades, Americans have been debating the need for the minimum wage. In the latest Intelligence Squared U.S. debate, four economic experts face off over whether the government should intervene or leave things up to the market.

Law professor Thane Rosenbaum says it's time for Americans to be honest about the role revenge plays in our lives. "The distinction between justice and vengeance is false," he writes in The Chronicle of Higher Education. "A call for justice is always a cry for revenge."

What if you put all 7 billion humans into one city, a city as dense as New York, with its towers and skyscrapers? How big would that 7 billion-sized city be? As big as New Jersey? Texas? Bigger? Are cities protecting wild spaces on the planet? We try a little experiment to find out.