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Sunday's sacking (or forced retirements, if you prefer) of Egypt's military chiefs by new President Mohammed Morsi has analysts scrambling to explain what it all means.

Google is eliminating about 20 percent of the jobs at Motorola Mobility, the struggling cellphone manufacturer it finished acquiring earlier this year for $12.5 billion, according to reports from The New York Times, Dow Jones' All Things Digital blog and other news outlets.

Good morning.

With Republican presidential candidate Mitt Romney's vice presidential pick now in the books (if you somehow escaped the news from the weekend, it's Rep. Paul Ryan of Wisconsin), the presidential campaign shifts into a higher gear this week.

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This summer, I was one of nearly 200 cyclists who toured D.C. one night in search of the city's most colorful murals in parking lots and back alleys.

The tour was co-sponsored by MuralsDC, a citywide project that trains young artists to paint mural masterpieces over tired, tawdry graffiti.

"It makes art so personal and accessible at once," says Laura Lyons, 20, a summer volunteer.

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NPR's business news starts with a spike in gas prices.

Gasoline prices jumped 18 cents over the last couple of weeks. That's the biggest increase so far this year. The Lundberg Survey shows that heading into the weekend, the national average price of a gallon of self-serve was $3.69. Now, analysts say the spike is in part because of some refinery and pipeline issues around the country.

Researchers used economic principles to predict which countries would win the most medals at the London Olympic Games. The study was 95 percent accurate for the 2008 games. And this time around, it was 97.7 percent accurate.

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For more on this big weekend in politics, we turn to Cokie Roberts for some analysis. Good morning.

COKIE ROBERTS, BYLINE: Hi, Renee.

MONTAGNE: So we just heard in Ari's piece the excitement Paul Ryan is generating among the Republican faithful. Is that partly why Mitt Romney chose him as his running mate, to generate some of the kind of enthusiasm that has been missing from his own campaign?

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