Doris Day gives a brief lesson in #OpSec Operational Security in #TheManWhoKnowsTooMuch - only divulge information on a need to know basis & don't subcontract out IT work to foreign spies pic.twitter.com/TtZzL85ems— 🎼AdagioForStrings🎻 (@adagioforstring) March 14, 2018
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