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A Facebook mail processing warehouse near company headquarters was evacuated Monday as officials work to determine what caused mail to test positive for the nerve agent sarin.(Reuters File Photo)

Facebook evacuates 4 buildings after possible nerve agent Sarin found on campus

Menlo Park | By Associated Press
UPDATED ON JUL 02, 2019 09:29 AM IST
The federal Centers for Disease Control and Prevention says sarin is a chemical warfare agent that is a clear, colourless, odourless and tasteless liquid. It can evaporate into the environment, prompting symptoms within seconds.
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