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    Live anthrax inadvertently sent by U.S. military

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Live anthrax inadvertently sent by U.S. military

Four Defense Department workers in the United States and up to 22 overseas have been put in post-exposure treatment following the revelation the U.S. military inadvertently shipped live anthrax samples. CNN's Kathy Novak has more.

Live anthrax inadvertently sent by U.S. military

Four Defense Department workers in the United States and up to 22 overseas have been put in post-exposure treatment following the revelation the U.S. military inadvertently shipped live anthrax samples. CNN's Kathy Novak has more.