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Locations of border crossings between countries, whether and when they are open, who may cross, and what must be done in order to cross.

5 votes
0 answers
737 views

What did I do to set off a siren at the automated e-passport gates in Heathrow arrivals? [closed]

Earlier today as I put my passport in an automated e-passport gate on the way back into the UK at Heathrow Terminal 3, a siren went off (!). What could that mean? Did I make a mistake using the mach …
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