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As the cost of health care continues to rise, people are looking for new ways to cover their medical needs. At a health care clinic near Portland, Maine, doctors accept an unusual type of currency: "time dollars," which allow patients to rake leaves and perform other community services in exchange for medical care.

But which acclaimed American should be featured first? The U.S. Postal Service is inviting suggestions from the public after ending its longstanding rule that people cannot appear on a stamp while they're still living.

In 2009, Peter Van Buren joined a team working to rebuild Iraq's infrastructure and economy. For the next year, he encountered comically misguided projects, greedy contractors and oblivious bureaucrats. In his new book, We Meant Well, he recounts the ground-level waste and corruption he saw.

The polio strains isolated from 10 children in China were linked to virus circulating in Pakistan. They're the first confirmed cases of polio identified in China since 1999, according to the World Health Organization.

Two other monks have chosen to protest China's restrictive control of their religion through self immolation. The latest news comes as the Dalai Lama and the Chinese government argue over the next incarnation of the Tibetan leader.

The first African woman to receive the Nobel Peace Prize has died of cancer in a Nairobi hospital. Wangari Maathai of Kenya was 71. World leaders are praising her for the work she did at promoting peace and conservation.

For a president whose approval ratings even among African Americans have dropped strikingly, it can't be anything but bad news that his speech's climax has upset part of his base.

The more susceptible a species' close relatives are to a virus, the more likely it is to move among them, researchers say. If humans want to predict the appearance of new diseases in the future, we need to understand how the viruses make the leap.

A rare, yellow hypergiant star has been photographed by researchers at the European Southern Observatory. The burning ball of gas is rapidly dying, just 13,000 light-years away from us.

There's one game left in baseball's 2011 regular season and four teams are tied for the last two playoff spots. It all ends tonight, or maybe not.