FILE - This Thursday, Jan. 3, 2013 file photo shows Google's headquarters in Mountain View, Calif. Google's latest "moonshot" project, announced Tuesday, Oct. 28, 2014, involves detecting cancer by swallowing a pill. The pill is packed with tiny magnetic particles, which can travel through a patient's bloodstream, search for malignant cells and report their findings to a sensor device that you wear. (AP Photo/Marcio Jose Sanchez, File)
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