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A medical center surgical team endorsed the da Vinci robot in an advertisement that ran in The New York Times Magazine in January. A university review found no fraud but said rules weren't followed.

In her first press conference as chair of the Federal Reserve, Janet Yellen pledged to keep interest rates low, but at times she wavered in word choice.

Host David Greene gets the latest from NPR's Frank Langfitt about the potential debris from Malaysia Flight 370 spotted by satellite imagery in the southern Indian Ocean.

David Wessel of the Brookings Institution talks about Janet Yellen's first policy meeting and press conference since taking over as chairwoman of the Federal Reserve.

Australian officials say they are searching the Indian Ocean southwest of Perth after satellite images found objects that are possibly connected to Malaysia Airlines Flight 370.

U.S. border officials are constantly on alert for drugs coming in from Mexico. But they are also on the lookout for huge sums of cash leaving the U.S. and trickling back into Mexican communities.

Crimea is a poor region, heavily subsidized by Kiev, and gets all its gas, water and food from Ukraine. Russia doesn't even have a land link with the Crimean peninsula and absorbing it will affect banks, schools, tourism and pensions for residents.

Venezuela has cracked down on student protests, leaving 29 people dead. The main square in Caracas, where protesters were based, has been dismantled. The opposition is divided over what to do next.

In Brussels on Thursday, EU leaders will discuss stronger sanctions against Russia. Juan Zarate, a senior adviser at the Center for Strategic and International Studies, talks about their options.

Around the world, millions of families of Iranian descent will gather around a ceremonial table to mark the start of spring. This ancient Persian festival has a lot to do with fresh, green foods.