All Things Considered Sunday

China and Russia this morning vetoed a U.N. Security Council resolution that could permit sanctions against Syria unless the government of President Bashar Assad stops using weapons against civilians. This is the third time China and Russia have rebuffed measures pushed by the United States and its allies to try to bring a halt to Syria's violent civil conflict.

As the guessing game continues about Mitt Romney's choice of a running mate, Ohio Sen. Rob Portman invariably comes up as a top contender. And with a wealth of experience in Washington and beyond, Portman would be considered a safe pick to run for vice president on the Republican ticket.

Ask AIDS researchers why they think a cure to the disease is possible and the first response is "the Berlin patient."

That patient is a wiry, 46-year-old American from Seattle named Timothy Ray Brown. He got a bone marrow transplant five years ago when he was living in Berlin.

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ROBERT SIEGEL, HOST:

And now we turn to the Mississippi River. The drought has brought parts of the Mississippi to near record low water levels. Those shallow conditions pose difficulties for barge traffic on the river and we turn now to Mark Mestemacher who is co-owner of Ceres Barge Line. It's based in East St. Louis. Welcome to the program.

MARK MESTEMACHER: Thank you.

SIEGEL: And how low is the river in East St. Louis?

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AUDIE CORNISH, HOST:

Time now for a small correction to this report from the campaign trail by NPR's Don Gonyea.

DON GONYEA, BYLINE: President Obama was in Cincinnati dropping in on a Skyline Chili, where he ordered a local favorite: a hot dog covered with spaghetti, smothered with chili and beans.

ROBERT SIEGEL, HOST:

Spaghetti on top of hot dogs? For shame.

Cities and cars share a conflicted relationship these days. Environmental concerns, growing traffic congestion and an urban design philosophy that favors foot traffic are driving many cities to try to reduce the number of cars on the road. In cities such as Seattle, Chicago, Toronto and Boston, some people go so far as to claim there is a "war on cars."

Jerry Seinfeld's new series is called Comedians in Cars Getting Coffee, and the promos promise exactly that. The comic toodles around in his vintage wheels, drinking java with his pals Alec Baldwin, Michael Richards and Larry David, and discussing (among other things) the effrontery of ordering herbal tea when invited out for coffee.

But the next act from the man behind the most popular sitcom on television won't be on television. It's a webseries.

Part 3 in a four-part series

Maybe you've agreed to be an organ donor. There might be something on your driver's license — a red heart, a pink dot or the word "Donor" — to show it. That also means you've very likely agreed — even if you don't realize it — to donate more than just your organs.

I know that I'm an organ donor. I signed up years ago, when I renewed my driver's license. But I had no idea that I'd also signed up to donate my tissue. That is, until Laura Siminoff, a professor at Virginia Commonwealth University's medical school, explained it to me.

Yesterday the Food and Drug Administration gave the first green light on a drug to prevent HIV transmission.

Many experts say the drug will help hasten the end of the AIDS pandemic. But experts in Brazil say the drug alone isn't the answer.

One of the drug trials the FDA considered was done at the Oswaldo Cruz Foundation Research Institute, also known as Fiocruz, in Rio de Janeiro.