Canaries in a Coal Mine

We have all heard the expression “canaries in a coal mine”:

An allusion to caged canaries mining workers would carry down into the tunnels with them. If poisonous gases such as methane or carbon monoxide leaked into the mine-shaft, the gases would kill the canary before killing the miners.

Is Las Vegas the economic canary in a coal mine? I have been there in the last month. Not a pretty sight. Far less people.

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