Importantly, the Australians conducted a similar test, with their soldiers wearing gas masks and doing calisthenics in light mustard gas. And they made a film of it, and gave a copy to the US Army.
Then in the 1970s or ‘80s, when their scandal blew up, they demanded the US copy of the film back. The US Army said “we have lost it”, but the truth was it was too valuable to be lost or returned to be destroyed.
Geez...thank you. Glad I posted this article. I didn’t know that.