Modern border checkpoint with stop sign, travel and transportation security, international boundaries, customs control
Schlüsselwörter
checkpoint,
border,
custom,
travel,
security,
inspection,
control,
stop sign,
transportation,
international,
boundary,
surveillance,
immigration,
safety,
regulation,
crossing,
area,
station,
guard,
passport,
monitoring,
vigilance,
enforcement,
facility
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