Racist lady on bus informed U.S. has no official language

A woman on a bus in Amherst, Ma., objects to young passengers not speaking English in a private conversation she was not party to. Other riders on the vehicle then object to her making a big racist fuss. The cops arrive and assure her that it is she who is in the wrong. Then she storms off.

Is it telling that a cop comes along and asks the victims for their IDs, but not the elderly white man defending them? He had clearly put himself at the center of events, after all.