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Mostly the former, if they offer a 1 year visa to A citizens but a 10 year visa to B citizens, you can say "I'm a B citizen!" and get the 10 year visa. Hiding

• oh_sigh 6y ago
  That's what I assumed is the case, but my question is about how much data each country might have on the citizens of other countries, and whether that would affect this arrangement. I was thinking specifically of the certain countries where you needed to hide the fact that you have been to Israel. Or, for example, to Iran - where Americans need special government babysitters to visit the country but the Swiss don't. Wouldn't the Iranians want to monitor a Swiss-passport-carrying American as much as any other American?
  • samus 6y ago
    Everybody involved in this (serious) game knows that people can have multiple passports and that the ones with disadvantageous information are usually not shown. There is indeed an ongoing risk that authorities get information some way or another (flight records, informants, data breaches, social networks) and start connecting dots. Intelligence services probably do that all the time to keep tabs on operatives of other countries. In the Iran case, the safe way seems to disclose the double citizenship and accept the babysitters. As a Swiss, I would clarify with the Swiss embassy whether they can intervene in case the double citizenship causes further problems. It seems likely, as the person would still be a Swiss citizen. It all depends how much hassle it is to sour the diplomatic relationship with Switzerland.