Expectations
I must say that I do find it interesting that a few heated verbal exchanges and one guy carrying a gun peacefully somewhere near where the President was speaking is considered a looming threat from the right to civil society while lefties physically clashing with police and destroying property (again near the President) is treated as ho-hum, more leftish rioting. The same bored reaction tends to result from union violence as well. Is it bias, or have we just had years to get used to violence on the left? With memories of Seattle, all subsequent violence I guess seems tame and not worthy of comment.