Why don’t we just have bomb sniffing dogs at multiple points of contact with people and luggage?
Too expensive to train?
But there’s probably a reason blacks aren’t searched as often. They are ~13% of the population, so they should be ~13% of the “random” searches.
Besides, we all know old people and toddlers are relentlessly plotting to blow us all to hell.
The reason given for not having bomb sniffing dogs is that it would offend members of Islam.