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Los Angeles International Airport made our list as one of the worst TSA checkpoints in the U.S. Apparently, their checkpoint isn’t the only bad thing. A comment on reddit.com calls them “the worst.” "Designed in the '20s and '30s, completed in the '40s, LAX is drastically undersized for the number of travelers who pass through its infernal gates every day. The "horseshoe" can't handle the traffic, but that's after you've fought your way to the West side just to get there. It's a classic example of Los Angeles' short-sightedness.”