No, actually they do see colors but not the way we do.
Any GSD worth her salt does pick up on unusual body languge, ie someone is overly anxious or hostile.
Expect more of these incidents as Obama & the MSM gin up a race war.
I learned years ago that GSDs are targets for druggies due to the association with law enforcement.
Expect the left to start making the Hitler associations.
Keep your dogs safe from libtards. Be mindful of how easy it is to poison a dog in his own yard.
I know I’ll get trashed for this, but I’ve heard some people who work in black areas say blacks have a different scent.
In fact, once when I had a black person in my car, the next person in the car mentioned it. I can’t smell it (and I wouldn’t mention it if I could) but certain people who often go into black homes have mentioned it to me. My guess is it may be hair products or different food items they eat.
If a person can pick it up, I’m sure a dog can, and would regard it as “different”.