I remember ages ago, drivers for computer scanners suddenly had MANDATORY checks for those patterns you see on banknotes and refuse to scan if it was a positive. I had a CanoScan 6000 at the time and remember seeing a patched version of the then-latest driver that disabled the check. Now I don't see any patched drivers anymore, by the way. Then there were the laserprinters that printed "secret" identification-dots, providing forensic information leading back to the specific printer that was used to print it. Then there are the MANDATORY (as per the LA) checks for the Cinavia audiomark in BD players, including the PlayStation 3.
It's just a matter of millions of dollars in 'campaign donations', time, 'VIP -package with meet&greet invitations to events', etc. before similar checks pop up everywhere where you and I, right now, don't expect them.