Wild West Politics?

[sexobon]

That's like saying that plainclothes law enforcement officers (e.g. city, county, state, federal - incl. Sec. Svc.) who happen to be on the scene when a politician is attacked shouldn't intervene; because, there may be more than one of them and they might all shoot each other. Absurd. It's the responsibility of each shooter to verify the legitimacy of a target as well as the risk to others before pulling the trigger and there are many ways to separate friend from foe. There are also many non-LE people I would trust to do a better job of that than many LE officers.