I think you missed the point of the article. Once the biometrics are in the system, you can't go back to that country (or any other country with which it is sha

I think you missed the point of the article. Once the biometrics are in the system, you can't go back to that country (or any other country with which it is sharing data) precisely because those biometrics are forever linked with the first identity's travel documents. If you show up again, the fact that your biometrics no longer match the first identity is going to set alarm bells ringing. In other words - the first time those fingerprints passed through the system they were attached to a British citizen called "John Bull" and now look! Those same fingerprints are attached to an Israeli called "Menachem Reichman".