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Cochineal is a red dye made from a crushed insect native to Latin America. Some vegetarians are distressed that Starbucks uses the dye in some of its pink-colored food and beverages.

When Fred Smith started FedEx in 1971, the company nearly didn't make it because of the spike in fuel costs related to the Arab oil embargo. That experience led Smith to turn FedEx into one of the leaders in looking for alternatives to power its vans, trucks and jets.

Wal-Mart has become the latest food retailer to announce that it's making changes after listening to customer concerns about lean finely textured beef, known by detractors as "pink slime."

An artist-turned-teacher from a military family is teaching middle-schoolers to build bikes from scratch. For students who weren't thriving in a traditional classroom, the program provides a burst of insight into the value of hard work and new adventures.

Democrats were quick to attack House Republicans' budget plan, which calls for an overhaul of the program. Leading the charge is Vice President Joe Biden, who told senior citizens in Florida not to be fooled. Republicans, though, see the proposal as necessary for the next generation.

Trayvon Martin's parents asked his Miami school not to announce his death, but Wednesday, almost a month later, the school held a moment of silence. Two days later, students rallied together, walking out of class with calls for justice, and planning for more acts of solidarity.

An expert committee that advises the government is once again going to review some controversial studies on bird flu to see if they can be published openly. Last year, those experts said no, because of concerns that the work could be misused and was too dangerous, but the government asked it to reconsider after a World Health Organization panel came to the opposite conclusion.

Apple's iPads and rival devices are finding a happy home in hospitals and medical practices. But as with driving, distractions are threatening safety — in this case, patient safety.

Shirley Ree Smith, who was convicted of killing her 7-week-old grandson, faces a return to prison. But an investigation by NPR, ProPublica and PBS Frontline has found documents that raise new questions about the autopsy that sent her there.

The Chinese have a long tradition of eating dogs. But increasingly, dogs are becoming pets. And animal rescue groups have taken to saving truckloads of dogs on the side of the road before they reach the butcher's shop.