More than a year after US diplomats in Havana, Cuba, began reporting to embassy officials that they were hearing bizarre noises and experiencing a range of physical symptoms, the State Department and federal investigators have been unable to attribute the source or cause of the ailments, which they've determined, simply, "were most likely related to trauma from a non-natural source."


원문출처 : http://www.cnn.com/2018/01/09/politics/cuba-attacks-perplexing-state-senate-hearing/index.html