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While most of the news about elephants out of Africa concerns poaching and falling numbers, South Africa has the opposite problem. Its elephant populations have grown greater than the country can manage.

Ten years after a cascading power outage across a broad section of the U.S. and Canada, utility operators and regulators are concerned about another blackout scenario: a massive cyberattack that could threaten the U.S. electric grid.

The British-American actress co-stars opposite Eric Bana in the surveillance-state thriller Closed Circuit. She joins NPR's Robert Siegel to talk about playing a barrister, working with her celebrated Shakespearean father and being inspired by her opera-singer mom.

Patty Stonesifer once held a top spot at Microsoft. After that, she spent years at the helm of philanthropy giant the Gates Foundation. But this year, Stonesifer downsized. She's taken on a smaller-scale role as CEO of Martha's Table, a Washington, D.C., nonprofit that serves the poor.

Along with submissions for our Weekly Innovation post, we've also received ideas for things that haven't been created yet, things that NPR readers want to see become a reality (like reversible tattoos or steering wheel fans). As we look ahead to 2014, here are our favorite ideas of the past year.

But it said its failures did not directly contribute to the blast, which killed 29 coal miners in 2010.

Many top athletes are rejecting the processed drinks and gels companies are squarely aiming at them. Instead, they rely on old fashioned water and healthy food to rehydrate and replenish nutrients.

Former Pennsylvania Sen. Rick Santorum is looking for momentum as Republicans caucus and vote in three states on Tuesday: Missouri, Minnesota and Colorado. And dissatisfaction with front-runner Mitt Romney in Missouri could point to a potential opportunity for President Obama in the fall.

Farm worker advocates and top Obama administration officials have been pushing hard for new regulations that would improve safety for teenagers working on farms. But facing fierce opposition from the agriculture industry and its allies in Congress, the Department of Labor abruptly withdrew a set of rules that advocates said could save dozens of lives every year.

Companies are using algorithms to guess your favorite film, track the development of the Occupy movement and predict insurgencies in Iraq and Afghanistan, among other things. But with great power also comes great responsibility.