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Local officials in Washington D.C., are on the verge of approving two high-tech radiation facilities for treating cancer at a total cost of $153 million. The treatment these hospitals would offer costs twice as much as standard radiation, but hasn't been shown to work any better for most cancers.

Would you like to know the life history of that steak before you eat it? Technology exists to give you that information, at least in Michigan, where the state government requires all cattle to carry an electronic tag for tracking purposes.

Environmentalists are focusing on big corporations to prevent the destruction of rain forests cut down for paper products. With help from some unlikely characters, they've scored a success against one of the world's largest paper companies.

As humans have cut into Brazil's forests, the toucan population has taken a dive. The trees, in turn, have changed, too: Without large-billed birds to eat fruit with big seeds, only trees with small seeds thrive. Eventually, one scientist says, "the impacts on the forest could be quite dramatic."

Pledge 51 creates applications for Nigeria's low-tech cellphones. The company thinks it could grow its business with help from foreign investors, but Nigeria's low GDP has made that difficult. If the country changes the way it calculates this figure, that could help Pledge 51 bring in new investment.

Houston's air quality improved dramatically over the past decade, but the city is still short of meeting the latest smog standards. Getting there isn't simply a matter of cracking down more on the petrochemical industry — the city needs to deal with cars on its sprawling roads, and bad air blowing from out of town.

Also: Bill Clinton blurbs a comic book; Rev. Andrew M. Greeley has died; Molly Fischer on Zelda Fitzgerald.

A cold front is expected to move into Northeast Texas on Saturday - bringing with it a chance for severe storms.The National Weather Service advises that…

Last year a snapshot of a frowning feline went viral, emblazoned with captions such as: "Of all the 9 lives I've lived, this is the worst." Within months, "Grumpy Cat" had a book deal. Now the feline face that launched a thousand memes has a movie in the works. Turns out Grumpy Cat has a great agent — the same one that represents fellow online star Keyboard Cat.

Some news organizations are saying 'thanks, but no thanks' to an off-the-record meeting with U.S. Attorney General Eric Holder. He offered to discuss guidelines involving the Justice Department's investigation of security leaks to the press. Host Michel Martin checks in with the Barbershop guys.