The F.B.I. investigation into Russian election meddling and possible ties to Trump associates was originally called Crossfire Hurricane. By Matt Apuzzo and Adam Goldman May 16, 2018

"Here’s Your Unclassified Briefing on Secret Government Code Names"

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https://www.nytimes.com/2018/05/16/us/politics/fbi-code-names-investigations-crossfire-hurricane.html