Unfortunately, few U.S. airports rarely offer the ease or public transport connections into their affiliated cities that Heathrow does, but one rare exception is Salt Lake City, a major Delta hub, which just this week debuted TRAX, a light rail train into downtown.

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There will be two sheriffs deputies on every single train, both subways and light rail, and additional police presence at train stations and on buses.

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But there is nothing new in the light rail schemes, bypasses, and the replacement and refurbishment of train stock that he announced.

ECONOMIST: Transport