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 ...

An investigative podcast takes on the enduring mystery of people who became sick while stationed at embassies in Havana, Cuba starting in 2016. Reading time 5 minutes In the summer of 2017, reports of ...