[Gbro]

This is the Onion copied from the old slide presentation,

Brian asks;

What is the significance of color-blindness to safe gun handling?

Then follows up with,

I know they use these for aviation physicals...

I say, [ what is the difference]?
They are both to make aware of the condition one may have, however we dealing with it in a FAS class would maybe unveil to the student for the 1st time that what they see is different from what others see.
Looks like there is no test or evaluation for School Bus Drivers and although i only have a Passenger endorsement on my CDL I never-the-less was surprised.