Emergency preparation graphics, from Ready.gov

These are a little like the seatback graphics on airplanes, showing you what to do if the plane goes down….

But these are freakier.

a biological attack can make you sick   unusual or suspicious release of an unknown substance  a chemical attack can poison people and the environment
if you think you may have been exposed, immediately strip and wash   a radiation threat or 'Dirty Bomb' is a combination of common explosives and radioactive materials   the force of the explosion and radioactive contamination will be localized

I feel much better now. Don’t you?