As an Army officer in the late 1960s, I was trained in riot control, responding to the race riots in Washington, D.C. after the assassination of Martin Luther King Jr. and just before my departure to Vietnam. I have a simple solution. You see the use of tear gas frequently. Did you know that you can mix with tear gas an element called DM, which is a vomiting agent? No need for bullets. No need for heavy armament. Just deploy a few canisters of a mixture of CS and DM. No one will die, but it won't be a pretty sight. You wouldn't have had a Kent State, for example.