You haven't got a shred of evidence of malicious intent, so you just toss around accusations of racist conspiracies. That's insane and shameful.
(I happen to think the TSA is misguided and unnecessary, but that's irrelevant to the question of discrimination.)
> If you build discrimination into the system you don't have to explicitly discriminate
There's a problem with people smuggling dangerous items on to aircraft, and the system is trying to address that to prevent people of all races dying.
The system has to find things that are hidden, and that means it has to discern between people who have more places to hide items on their body.
That design of the system is a natural consequence of the parameters of the problem, not some vast conspiracy to oppress minorities.