Dangerous sound? What Americans heard in Cuba attacks

Friday, October 13, 2017 at 12:20am

WASHINGTON (AP) — It sounds sort of like a mass of crickets. A high-pitched whine, but from what? It seems to undulate, even writhe. Listen closely: There are multiple, distinct tones that sound to some like they're colliding in a nails-on-the-chalkboard effect.

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