The San Francisco Municipal Transportation Agency has banned movie ads displaying guns:

While the official poster for the film [The Other Guys] features a maniacal Ferrell and the menacing Wahlberg sailing through the air, guns drawn, the version in Muni stations features Ferrell brandishing a vial of pepper spray and Wahlberg relying upon his bare fists. This is not a coincidence.

Eugene Volokh finds the policy unconstitutional.

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