In my 23 years as a weekend warrior, I remember going through CBR or NBC training on an annual basis, which included wear a MOPP suit for 4 hours annually, in Mississippi that is best scheduled in January or February. But, the biological part of the training was always the "scariest" part of the training. Of course, that training focused on hostile environments and this appears to perhaps be an attack out of the blue and against every free country in the world.