>> in 2017 mark pollee muropilous was a cia official on an official trip to moscow when he says he was also attacked. >> i woke up with an extreme case of vertigo. i had a splitting headache and my ears were ringing. this is terrifying. there's not been a day since then i've not had a headache morning tonight, when i sleep, get up, never goes away. >> after china and moscow over the five plus years american officials have reported nearly 900 concerningly similar incidents across the globe. >> the american embassy in columbia. >> the cases reported in tajikistan. >> but the majority of those ne...