There are a number of questions embedded in that.
We started with cultural sensitivity. In the case of face recognition, if that's your primary biometric for crossing a border, and if in a Muslim country they don't wish to have their face image taken, we would usually have an alternative for the person to provide a fingerprint. We would still match that person from who they say they are to a biometric, but the cultural sensitivity would be that they have a choice.
The nature of your other question was people with the same name—