Is this still part of regular army training?

October 10, 1962: "Today I was put into a gas chamgber, various gasses including tear and chlorine, were let loose while I had my protective mask off. No harm done, but don't ever laugh when you see those movies where the gangster has a tear gas bomb thrown at him and immediately you see him running out to give himself up, eyes crying, etc. This is no shit - it was HELL. It's like you just incurred a severe skin rash over your entire face. All this is part of the DBR training which is designed to prepare all of us young troopers for chemical and biological warfare and/or thermal nucular [sic] attacks."

Hmmm...I was once in love with a man who said "nucular." Will this muck raking never cease?