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Many doctors and researchers feel that most Americans get more than enough protein, but the macronutrient seems to be everywhere these days -- being advertised on candy bars and ice cream.

As many as 1,300 probationary employees at CDC and 1,500 at NIH are losing their jobs. Many fear for the future of public health and scientific research.

Iowa's abortion ban makes an exception for circumstances like rape. But many doctors and activists say it's nearly impossible for survivors across the country, especially in Iowa, to get an abortion.

A federal grand jury could return indictments against top White House officials as a result of an investigation into leaks that exposed the identity of undercover CIA agent Valerie Plame. As speculation mounts, the role of Vice President Dick Cheney takes on new significance.

This is the sound of an artist laying it all on the line.

For the first time since President Obama took office, the White House has invoked executive privilege in a dispute with Congress. Obama sided with his Justice Department and refused to turn over documents to House Republicans in their probe of the botched gun-trafficking operation known as Fast and Furious. But the aggressive move by the president was not enough to stop a Republican committee from voting to hold his attorney general in contempt.

Officials from France, Britain and Israel claim chemical weapons have been used in Syria. President Obama has warned Syria that the use of chemical weapons would be a red line. U.S. officials say they are looking into the latest allegations of chemical-weapons use but have not come to the same conclusions that others have.

Any team that can put together a four-game winning streak will become the next champions. Only two No. 1 seeds are alive in the tournament, and the highest-profile schools have already gone home.

This oral history of the Back to the Future movies offers a wealth of fascinating historical trivia — but critic Genevieve Valentine says it's carefully broad scope can mean a lack of sharp analysis.

The annual butterfly migration is underway. For decades scientists have relied on volunteers to tag butterflies to provide details about their journey.