Safe and Sound

Stephanie Blythe in Aida

New York Times reporter David Unger discusses the hidden costs of America’s obsession with absolute national security. Mezzo-soprano Stephanie Blythe talks about singing three major roles at the Metropolitan Opera this season. Also A History of the World in 100 Objects takes a look at a lacquered cup from China’s Han dynasty. Plus on today’s Please Explain, Jeffrey Sachs discusses the possibilities of world peace for the final installment of our How to Save the World series.