Let's talk next about the uprising in Syria, where many people are asking, what happened to the United States? The U.S. promised practical help to the Syrian opposition, but NPR's Deborah Amos reports that help has not arrived.
DEBORAH AMOS, BYLINE: This was the scene last month in Morocco, at the Friends of Syria meeting. The Obama administration recognized the Syrian National Coalition; so have 130 other nations.
North Korea has ratcheted up its rhetoric about the U.S. to a level that has even surprised seasoned observers. Last week, after the U.N. Security Council unanimously approved new sanctions against North Korea, its new young leader called for, quote, "all out action against America." The U.N. sanctions came in response to North Korea's successful long-range missile tests last month.
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And I'm Renee Montagne. When Islamist militants and rebels took over the vast desert region of Northern Mali last year, the big prize was the fabled city of Timbuktu. This morning, French-led forces are poised to take back Timbuktu. They've reached the airport outside the city, which a joint force of French and Malian troops took over the weekend.
The Defense Department's Advanced Research Projects Agency, or DARPA, has incubated many important technologies over the decades in computer networking and other areas. The Energy Department wants to make similar strides with an agency called ARPA-E. Over three years now in operation, ARPA-E has spent nearly $800 million on 285 experimental projects.
We invited the agency's deputy director, Cheryl Martin, into our studio so we can find out more about these projects. Good morning.