So if you spray 10 year old sarin on people, they don't die?
This is good news.
We can safely shut down Anniston, Pine Bluff, Tooele and Umatilla!
Think of all the ObamaPhones the savings will buy!
IIRC there were several cases of deliberate (but small) attacks with nerve gas weapons in Iraq during and after 2003. And some accidental releases also. The stuff was from old stocks apparently pre-1991. It just wasn’t very deadly. AFAIK nobody on our side was killed by these attacks.
I suspect our old stuff also is of questionable potency by now. Not to say it isn’t dangerous, I’m sure it is, but not what it used to be.