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RENEE MONTAGNE, HOST:

And for one more year, college students can access a certain kind of loan for the low rate of 3.4 percent. It's known as a Stafford loan, and the interest rate was set to double, until lawmakers managed to reach an agreement to keep the rate low, which in turn will keep college more affordable for more people.

Roger Federer now shares the Wimbledon men's singles record with Pete Sampras and William Renshaw. Andy Murray had hoped to be the first Briton to win the Wimbledon title in 76 years. Linda Wertheimer talks to Doug Robson, who covered Wimbledon for USA Today, about the tournament.

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LINDA WERTHEIMER, HOST:

One of the places you'd expect to find healthy food is in hospitals - boring, but healthy. But in recent decades, fast food restaurants have worked their way into hospitals around the country. That's despite growing evidence linking fast food menus to high rates of obesity, diabetes and other chronic diseases. Elana Gordon from member station KCUR in Kansas City takes us to one place that has been wrestling with that situation.

The House Rules Committee takes up a bill Monday called the "Repeal of Obamacare Act." And just like it says, the bill would wipe away the president's Affordable Care Act. A vote of the full House is planned for Wednesday.

It's the first legislative response from House Republicans after the Supreme Court upheld the law. But it is far from the first time the GOP has voted for repeal.

The legal battle between Republican lawmakers and Attorney General Eric Holder over access to documents in a gun scandal could take months, if not years, to resolve.

But one man has already been sifting through secret emails about the operation known as Fast and Furious. He's Michael Horowitz, the Justice Department's new watchdog.

The southern African nation of Botswana has one of the highest rates of HIV in the world. Nearly 25 percent of all adults in the country are infected with the virus. Only the nearby kingdom of Swaziland has a higher rate.

But Botswana is also remarkable for its response to the epidemic. It has one of the most comprehensive and effective HIV treatment programs in Africa. Transmission of HIV from infected mothers to their fetuses and newborn babies has been brought down to just 4 percent.

Researchers are studying the ability of beneficial micro-organisms - or probiotics - to treat a range of conditions from eczema to inflammatory bowel disease. And the idea that "good" bacteria are healthy for us is gaining traction.

But the science is tricky.

There are two big factors that will determine the outcome of the presidential election: the economy and demographics.

The economy is weak and doesn't look likely to improve by much, but the makeup of the electorate on the other hand is highly dynamic. It continues a trend underway for years: a rapid rise in the number of people who are not Anglos in both the population and at the polls.

That percentage actually doubled between 1992 and 2008, says Alan Abramowitz, a political scientist at Emory University.

Liberia is launching its first large-scale military operation since the end of its brutal civil war. Liberia's army, which has been trained by the U.S. military over the last six years, is going after mercenaries and rebels who are using thick forest as cover from which to launch ambushes in neighboring Ivory Coast.

Back in 1912, Massachusetts became the first place in America to introduce a minimum wage, but it would take another quarter century before a national minimum wage was set.

President Franklin Roosevelt made it law in 1938, that any hourly worker had to be paid at least 25 cents an hour. It was revolutionary, and very few countries had anything like it.

Weekends on All Things Considered host Guy Raz speaks with NPR's Kelly McEvers about her reporting trip to towns in southern Yemen, which recently came under fire from what are believed to be unmanned drones.

A professor at The University of Texas has figured out how to intercept drones while in flight. Todd Humphreys and his team taps into the GPS coordinates of a civilian drone and can alter the flight path, even land it. Weekends on All Things Considered host Guy Raz speaks with Humphreys about how he did it and the dangers that hacking can present.