I found the mans email who said
According to Division Chief Jim Sideras, "The problem can be if something gets plugged up, too much propellant, it will actually explode."
I got it from here http://www.firerescue1.com/Columnists/Sideras/
lets email him
oh but whats this the writer of the article Caitlin Haedicke
i found her email it's email@example.com
I got it from here http://www.ksfy.com/about/bios/8895762.html
just try to be modest if you email them we want to leave a good example