There's another issue here - and I have some limits as to what I can say - but there's some real question as to the viability of the chemical masks, the protective gear used by our soldiers. ↗
What we know from World War I is that some of our troops had acute symptoms of exposure to chemicals, had bad health and died because of chemical exposure in World War I. ↗
Yes, there is a story about Agent Orange, and we knew that it harmed our troops and we knew how long it was to get the medical community to accept that, the military to accept it, the VA to accept it. ↗