Flashback: 26 Americans in 7 Cities Have Now Been Hurt by Unusual Sounds – Bloomberg

As President Donald Trump was heading to Singapore for a historic summit with North Korea’s leader, a State Department diplomatic security agent who was part of the advance team reported hearing an unusual sound he believed was similar to what was experienced by U.S. diplomats in Cuba and China who later became ill.

via 26 Americans in 7 Cities Have Now Been Hurt by Unusual Sounds – Bloomberg