Host Bob Edwards talks with Rep. Sherwood Boehlert (R-NY), chairman of the House Science Committee. He will chair the House investigation into the shuttle Columbia disaster.
NPR's Michel Martin speaks with former U.S. Ambassador to Ukraine John Herbst about how this latest round of U.S. aid will affect the situation in Ukraine — on and off the battlefield with Russia.
Gaza protests on college campuses stretch across the U.S. British lawmakers OK plan to outsource U.K.'s refugee system to Rwanda. Supreme Court to hear Starbucks case about fired pro-union workers.
Genetic researchers and historians say the DNA of 27 people who were enslaved in Frederick, Md., before the Civil War indicates they have about 42,000 living relatives.