The figures are in for the federal government's fiscal 2012 and the deficit was $1.089 trillion, according to the Treasury Department and Office of Management and Budget.

That's less than the previous year's $1.297 trillion and is the third consecutive decline.

But it's also the fourth year in a row of a $1 trillion+ gap between spending and revenues.

When the Soviet Union splintered two decades ago, one of the biggest U.S. worries was how to ensure that the vast Soviet arsenal of nuclear weapons was kept secure.

The American response was the Cooperative Threat Reduction program of 1992. The U.S. provided money and expertise to lock down and track weapons of mass destruction and make sure they stayed out of the hands of rogue regimes or terrorists.

The program has been hailed as a great success, with thousands of Soviet nuclear weapons dismantled over the years.

Reporting by the Charleston Gazette this week suggests that the Obama administration's efforts to impose tough new limits on miners' exposure to coal dust have stalled.

The United Mine Workers Union suggests election year politics may be the reason.

Two days after the United States Anti-Doping Agency's release of the evidence it says shows that cyclist Lance Armstrong was part of "the most sophisticated, professionalized and successful doping program that sport has ever seen," the head of the Tour de France has said the world's most famous race will officially have no winners of the seven Tours that Armstrong won if he is stripped of those titles.

Researchers have found that kids with autism spectrum disorder who did yoga at their elementary school behaved better than kids with autism who weren't doing yoga.

The researchers surveyed teachers at a school in the Bronx who said a daily yoga program reduced the kids' aggressive behavior, social withdrawal and hyperactivity.

Transcript

IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow. Fifty years ago this week, a team of researchers at General Electric created something new: a solid-state device that could emit visible red light without getting hot like a light bulb. Other groups have made light-emitting devices, but this was the first practical one that could make light that a person could see, rather than invisible infrared light.

For nearly a decade, scientists and Northwest tribes in Washington state fought bitterly over whether to bury or study the 9,500-year-old bones known as Kennewick Man. Scientists won the battle, and now, after years of careful examination, they're releasing some of their findings.

For starters, Kennewick Man was buff. I mean, really beefcake. So says Doug Owsley, head of physical anthropology at the Smithsonian's National Museum of Natural History, and the man who led the study of the ancient remains.