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According to Business Insider, sarin, a deadly poison, has been detected in a mail facility at the Silicon Valley Facebook headquarters. Evacuation and FBI investigations were reported.


  1. Is it possible that the detection was a false positive and according to whom?
  2. What is the business park where Facebook is located?
  3. Based on the article, why would you think that they evacuated 4 buildings and 3 are now back in use?
  4. If you were the accountant calculating miscellaneous losses for the one-day threat, what information would you need and why?
  5. Would a loss be allowed for this day per the tax code and why?


Price, R. (2019). The deadly poison sarin was detected in a mail bag at Facebook’s offices in California. Business Insider, July 1 (Retrievable online at