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Sigma-Aldrich (part of MilliporeSigma) [5][6] is a brand operating within an American chemical, life science, and biotechnology company owned by the multinational chemical conglomerate …

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Together, we impact life and health with science. We offer one of the broadest portfolios in the industry for scientists, best-in-class products for pharmaceutical development and …

6 days ago · CIA turncoat Aldrich Ames, who sold U.S. secrets to the Soviets, dies in prison at 84 Ames' betrayals are blamed for the executions of Western agents working behind the Iron …

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6 days ago · WASHINGTON — CIA turncoat Aldrich Ames, who betrayed Western intelligence assets to the Soviet Union and Russia in one of the most damaging intelligence breaches in …