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As someone tall enough to have sufficient "bar presence", but who is married to someone who isn't (and as a former barman), I think in principal this is quite a neat idea. However, alarm bells ring at the requirement for internet access, as this would seem superfluous for basic on-site face matching. So what does it need internet access for? Has the state demanded snooping access to the vizogs of drinkers now, to add it its database of possible ne're-do-wells?