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President Obama leaves Wednesday morning for a week-long tour through three African countries. It's his first extended visit to the continent as president. He'll be making stops in Senegal, South Africa and Tanzania.

Television networks are up in arms. The new company Aereo is charging a monthly fee to provide a high-definition feed of the basic over-the-air channels, and the stations aren't seeing a penny of it. But CEO Chet Kanojia thinks he's figured out a legal loophole.

Architects have come up with spectacular concepts for vertical farms that would grow crops in city skyscrapers. But many horticulturists think the future of vertical farming isn't in skyscrapers, but rather in large, indoor warehouses lit up magenta by superefficient LEDs.

Tom Wolfe's new novel is a sprawling portrait of Miami and its many ethnic groups, centering around a Cuban-American police officer and an immigration conflict. NPR editor Luis Clemens says the book nails the physical descriptions of Miami, but falls down badly in the portrayal of actual humans.

The decision by Yahoo to stop its remote work policy seems to fly in the face of recent trends that allow more working-from-home, not less.

Republican Rep. Bob Goodlatte is charged with drafting the House immigration bill. He is against a path to citizenship for unauthorized immigrants but says the "broken" system needs work. And he says President Obama "should calm down, back off and let the Congress do its work."

In fashion's first hackathon, developers had just 24 hours to build an app for the industry — the finalists will be presented on the runway at New York's Fashion Week. "Right now the industry could really use some innovation," says Decoded Fashion founder Liz Bacelar.

As its economy prospers, the country has gained an enviable reputation in its often-turbulent West African neighborhood. It's admired for being a relative oasis of stability and peace in the region — despite tensions in the build-up to the vote.

For more than 150 years, a charity auction has kicked off the wine season in France's Burgundy grape-growing region. It's turned into an A-list rendezvous for international industry players — this year attracting former supermodel and first lady Carla Bruni-Sarkozy and record prices.

Several top government officials have been caught up in an embarrassing cheating scandal — including the defense minister, who resigned as a result, and the education minster, who is under investigation for her doctoral dissertation. An informal group of "plagiarism police" has undertaken the hunt.