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Radiation Risk to U.S. Very Low, Top Expert Explains

As the crisis at Japan's Fukushima Daiichi nuclear plant continues, some worry that radiation from the damaged reactors will reach U.S. shores. Dr. Edward Maher, president of the Health Physics Society, and an environmental science expert at Harvard, explains why we should breathe easy.

Johnson & Johnson Recalls Leaky Insulin Cartridges

Johnson & Johnson has issued another recall, and this time, it's not over a typo. The company's Animas unit recalled five lots of leaking insulin cartridges whose use could lead to serious health problems. The 2-milliliter cartridges can leak, resulting in the delivery of less insulin than intended.

Japan Finds No Link Between Vaccines and Child Deaths

Japan's health ministry says it's continuing its suspension of pediatric vaccines made by Pfizer and Sanofi-Aventis, despite finding no direct link between the vaccines and the deaths of four children. Both drugmakers are cooperating with the government and expect to be cleared.