米軍狙いのテロ？
症状がVXガスに似てるとの意見も

【米国】米軍基地に郵便物、開封した兵士ら体調不良で病院に搬送される
http://asahi.5ch.net/test/read.cgi/newsplus/1519777515/

2018.2.28 09:07
米軍基地に不審な封筒　開けたら１１人が体調不良に、鼻血も
http://www.sankei.com/world/news/180228/wor1802280023-n1.html

U.S.FEBRUARY 28, 2018 / 8:16 AM / UPDATED AN HOUR AGO
Three taken to hospital after letter opened at Virginia military base
https://www.reuters.com/article/us-virginia-security/three-taken-to-hospital-after-letter-opened-at-virginia-military-base-idUSKCN1GB366