The General Services Administration, which is tasked with developing the rules followed by other government agencies, is back in the limelight for the money it spent on a one-day event in the Washington, D.C. area.

In a letter to House members, the agency's inspector general says it has launched an investigation after its initial findings showed the GSA spent $268,732 on the event.

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JACKIE NORTHAM, BYLINE: I'm Jackie Northam in Washington. Today at the U.N., Russia and China vetoed a Western-backed draft resolution that warned of sanctions against the Syrian regime unless it complies with a peace plan.

This is the third time those two countries have used their veto power to block a resolution on Syria. Britain's U.N. ambassador, Mark Lyall Grant, called the decision by Russia and China appalling, and said it would lead to further bloodshed in Syria.

When Olympic swimmer Michael Phelps steps onto a starting block a few days from now, a Stanford scientist named Krishna Shenoy will be asking himself a question: "What's going on in Michael Phelps' brain?"

Specifically, Shenoy would like to know what's happening in an area called the premotor cortex. This area doesn't directly tell muscles what to do. But it's the place where the brain gears up for something the body is about to do, like swimming.

The news that the U.S. Food and Drug Administration this week approved the use of Truvada, an AIDS drug, to prevent infections in people who are HIV-negative is being greeted with skepticism, derision and even worry by some doctors in South Africa.

"Deathly afraid."

That's what one U.S. official says about the prospect that Syria's vast stockpile of chemical weapons might be used against rebel forces. From a U.S. national security standpoint, an even worse outcome would be for those weapons to fall into the hands of terrorists.

While the concept of the American dream has been a part of our national consciousness for generations, you'd be hard-pressed to find two people who define it precisely the same way. We can say that with some authority, because, as part of our series, American Dreams: Then And Now, we asked you to share your own take on the dream. Sure enough, no two responses were the same.

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