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Quick snapshot of the queue for security screening on the way out of Las Vegas airport. I didn't hang around to try to get a decent shot of this because blokes with guns take an interest in people who do that, but I wanted a memory of the sight. It's the same at all US airports these days - hundreds of people queueing for ages to get screened. You have to take your shoes off, which no one seems to believe necessary until they get to the front.