How The NFL Used To Punish Teams For Crowd Noise

Last month, Kansas City Chiefs fans broke CenturyLink Field's record for world's loudest stadium. Not long ago, however, that kind of in-game crowd noise was explicitly forbidden in the NFL rule book. This isn't all that surprising, as the NFL has a habit of hating its fans.

In this week's excerpt from Slate's Hang Up And Listen, Josh Levin recounts some of the steps the NFL once took to prevent such outbursts of fandom.

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