Minnesota Metro Transit Police accost a woman for filming and threaten to arrest her for "illegally" swearing.

The funny (sad?) thing is that the cops have a case here:

609.72 DISORDERLY CONDUCT.
Whoever does any of the following in a public or private place, [...] (3) engages in offensive, obscene, abusive, boisterous, or noisy conduct or in offensive, obscene, or abusive language tending reasonably to arouse alarm, anger, or resentment in others.