Comment by Glavnokoman

"inherently discriminatory because they took variables such as whether someone had a second nationality into account". Which is not necessarily wrong. If people with a second nationality are statistically more prone to cheating the system this is a valid variable to determine the probability that they actually cheat and not made a mistake. What would be wrong though is to blindly take that probability for the fact. But it is really hard to say what actually is going on there cause the article is full of emotions and carries close to zero information.