A biologist holds a slide prepared for testing in a micro array for biological hazards at the Lawrence Livermore National Laboratory in Livermore, Calif. Ben Margot/AP hide caption

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American Red Cross chief Gail McGovern (right) and Rep. Susan Brooks of Indiana tour the American Red Cross Digital Operations Center last year in Washington, D.C. Paul Morigi/AP Images for American Red Cross hide caption

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Veteran USPS letter carrier Michael McDonald gathers mail to load into his truck before making his delivery run in the East Atlanta neighborhood on Thursday, Feb. 7, 2013, in Atlanta. David Goldman/AP hide caption

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