Correct. I used to get quizzed every time I flew.
Also coming back from Canada once, I had 15 armed guards surround me and go crazy. If I was a black muslim, it would be easy to blame it on some combo of racism and/or religious discrimination. Rude shit happens to everyone - whites/blacks/christians/muslims. Yes, it probably happens more often to blacks/muslism as bigotry isn't dead but people need to remember it happens to everyone.
By assuming its discrimination, you are doing the exact same thing the racists themselves do. Farah is assuming these police are discriminating against him. Maybe he had a reason to do so but given that this happened recently with his wife, one might also conclude he doesn't want to answer any questions.
The post above had a typo. It said bigotry is dead instead of isnt. I've corrected it.