Pardon me, but there is a lot of distain for authority expressed on this forum, though I have faith that no one here would be the least bit violent.
You may recall the country went through some very serious rioting in the past, especially in the late 1960s. Some were worse than others, all were bad. There are other factors that I believe increase the propensity for violence under the right conditions.
Oddly enough, I think that the more news coverage being given a peaceful protest, the more likely it could turn violent. Likewise, the more police (and which police) that are on hand will have an influence. Sometimes the simple presence of cameras, especially news cameras, will make people misbehave and not just in a crowd situation. Some people just like to show off, you know.
Shoot low, sheriff. They're riding Shetlands!
Underneath the starry flag, civilize 'em with a Krag,
and return us to our own beloved homes!
Buy War Bonds.