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:

It was a story about the little guy taking on the big, multinational corporation on equal footing: Heather Peters, a California woman, took Honda to small claims court claiming her hybrid Civic wasn't getting the gas mileage promised on the window sticker.

The Food and Drug Administration has a proposition for the companies that make X-ray machines.

Make sure your new equipment has settings and instructions that minimize radiation hazards for kids, or the agency will look to slap a label on the machines that recommends they not be used for children at all.

The agency proposed the approach today (details in the Federal Register); it's the latest move to curb radiation hazards from imaging equipment.

The mortgage giant Fannie Mae announced today that it made $2.7 billion during the first quarter of 2012. For the first time since the beginning of the financial crisis, Fannie Mae will not ask the federal government for bailout funds.

CNN reports the company will pay a dividend to the Treasury Department. CNN adds:

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MICHEL MARTIN, HOST:

Now, we want to turn to a high school competition that is taking off this weekend, and no, we are not talking football or cheerleading. This is the finals of the nation's largest rocketry tournament. One hundred teens will gather for the Team America Rocketry Challenge this weekend in Washington, D.C.

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MICHEL MARTIN, HOST:

I'm Michel Martin and this is TELL ME MORE from NPR News. Coming up, there's a new report from a top U.N. official that looks at living conditions of Native Americans in this country. We'll hear from that official in just a few minutes. But first we turn to domestic politics. The general election is still months away but on Tuesday voters around the country cast ballots that could have a national impact.