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In an interview with ABC News, President Barack Obama said, "It is important for me to go ahead and affirm that I think same-sex couples should be able to get married." NPR's Ken Rudin discusses the president's comments.

In an interview with ABC News, President Obama declared his support for gay marriage. This marks a departure from the president's previous stance, which has repeatedly been described as "evolving."

Here's the money quote from ABC's OTUS blog:

Many headlines and stories (including some of ours) have been saying that a "double agent" infiltrated al-Qaida in the Arabian Peninsula and foiled a plot to get another underwear bomb aboard a U.S.-bound passenger jet.

But we've been looking at definitions of spy terms and think that based on what we have been told so far, the person at the center of the story wasn't a double agent.

That character was at least an "agent."

What if it's not just our genes or our lifestyle, exactly, that makes us skinny or fat, healthy or sick? What if it's also the makeup of the bacterial ecosystem that inhabits our gut?

A growing pile of scientific studies is pointing us in that direction. Researchers in this hot new field describe the microbes in our gut as a vital organ that's as essential as our liver or kidneys. They're finding that this organ, which they call the "microbiome," varies greatly from person to person.

The amount of plastic debris in the part of the Pacific Ocean known as the "Great Pacific Garbage Patch" has grown 100-fold in the past 40 years.

In a paper published today by the journal Biology Letters, scientists from Scripps Institution of Oceanography report that most of that plastic has degraded into pieces no bigger than a fingernail. But that wasn't the major finding the scientists are reporting.

The scientists have found that all those pieces of plastic have provided ample opportunity for insects called "sea skaters" to breed.

The AP reports:

Transcript

NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan in Washington. It's official: Gary Johnson lands the Libertarian presidential nomination. Former standard-bearer Ron Paul picks up GOP delegates. And Democrats wonder about the pace of evolution. It's Wednesday and time for a...

VICE PRESIDENT JOE BIDEN: Absolutely comfortable...

CONAN: Edition of the political junkie.

PRESIDENT RONALD REAGAN: There you go again.

VICE PRESIDENT WALTER MONDALE: When I hear your new ideas, I'm reminded of that ad: Where's the beef?

Transcript

NEAL CONAN, HOST:

The fall of Colonel Moammar Gadhafi's regime in Libya was hailed as one of the great successes of the Arab Spring. More than six months later, attacks continue on the prime minister's compound and well-armed mercenary fighters and stockpiles of weapons have made their way into Sub-Saharan Africa.

I was thinking about a conversation I had with a friend of mine who just got back from a wedding in Central America. He was telling me how impressed he was that just everybody at his hotel was, it seemed to him, effortlessly bilingual and even multilingual.

People switched back and forth from Spanish to English, and sometimes to French, in the span of minutes, depending on who was standing there and what was needed. I thought: Of course they are. They have to be. Their livelihood and advancement depend on it.