An @NBCNews exclusive: After more than a year of mystery, Russia is the main suspect in the sonic attacks that sickened 26 U.S. diplomats and intelligence officials in Cuba.

An @NBCNews exclusive: After more than a year of mystery, Russia is the main suspect in the sonic attacks that sickened 26 U.S. diplomats and intelligence officials in Cuba. @MitchellReports has the latest. pic.twitter.com/NEI9PJ9CpD

— TODAY (@TODAYshow) September 11, 2018