That won't work everywhere. I've been to a datacenter in London around 2010 where the entry was similar to the automated airport passport booths. The doors woul

That won't work everywhere. I've been to a datacenter in London around 2010 where the entry was similar to the automated airport passport booths. The doors would not open if you were not registered for a visit and there were no visible guards (I hope someone was around in case you got trapped...) I wanna say it was Telehouse West, but my memory is not great.