Dont think the average citizen had a cannon though. The Taliban has shown what can be done with simple weapons like AKs vrs superior forces. Think if it came down to a revolution here the military would side with the people.
The poll a few years back at 29 Palms says different, maybe 50% would follow illegitimate orders. My kid was a jarhead and I asked him to poll those at his duty station. He came back to me with about the same ratio. But that said, it doesn't get right down to the nut cuttin' does it?