I remember being questioned for about 15 minutes on my flight from the UK to Paris back around 2008. My trip from the US to Turkey from 2013 was pretty timid, maybe 2 minutes of questions and a mandatory body scan (stopover in Amsterdam). From the US to South Africa completely painless. I did get my hands swabbed for explosive residue on a trip from Detroit to Las Vegas a couple years ago.
I'm just curious if anyone here has personal experience as a middle class white individual getting treatment as harsh as I read in some of these articles.