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Consumers are demanding "natural" food dyes, and scientists say the purple sweet potato is the most promising source of pigments to make them. But it may be a while before your red Popsicle is made with this kind of vegetable-based dye.

The Pentagon has been focusing on the Syrian military's command-and-control sites, which remain the most likely focus of any U.S. strike. But military planners have begun to add new targets, such as mobile missile launchers, that could require more than cruise missiles — and make the mission more complicated.

Toronto film correspondents Bob Mondello and Linda Holmes chat with Audie Cornish about what they've seen so far.

Zimmerman's estranged wife called police, saying he threatened her with a gun, punched her dad and destroyed her iPad with a knife.

When an especially nasty intestinal bug threatened 86-year-old Billie Iverson, an unusual transplant saved her. The medical solution, still experimental, was to replace her dangerous digestive bacteria with a healthier mix of microbes.

As expected, the Kremlin-backed incumbent won Moscow's mayoral election, but the surprising thing was that he garnered barely enough votes to avoid a run-off election. The main opposition candidate, Alexei Navalny, walked away with at least 27 percent of the vote. His campaign strategists have said it would be a victory if he got more than 20 percent, because that would energize the opposition and show that Muscovites want a more democratic future.

It's a flavor combination that blends the familiar with the caveman and is a favorite of the patrons at Sunny Anderson's local bar in Brooklyn.

With waters rising and their hospital on the verge of losing power, Memorial Medical Center staff were faced with an ethical question: Who to save first? Sheri Fink reconstructs their decisions — from hastening patients' deaths to evacuating the sickest last — in Five Days at Memorial.

Doris Davis has been a Chicago Cubs fan since 1926, according to the News-Sun. In the days before TV, she listened on the radio while moving players around a diamond she made from a checkerboard. And she's still waiting for that championship. As the season nears its end, the Cubs are 22 games out of first place.

As Congress prepares to take a vote on whether to launch a military strike against Syria, opinions vary widely among voters. We'll get a sampling of opinions from Fort Campbell, Ky., Los Angeles and State College, Pa.