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    Somewhat clickbait title, as per the article, they’re not sure what caused it. Maybe “Attempts To Reverse Engineer …”, or the other article they posted, “Finally, a Likely Explanation for the “Sonic Weapon” Used at the U.S. Embassy in Cuba”.

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      Don’t forget the paper behind this article: https://spqr.eecs.umich.edu/papers/YanFuXu-Cuba-CSE-TR-001-18.pdf

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          Cool to see them using GNU Radio for the analysis.