I worked at a book store on State Street in Madison, Wisconsin during the Vietnam war protests and demonstrations. Leading up to the Capitol Building there was a section of retail stores. I sat at a desk near the front of the store doing some paperwork. National Guard Troops in Army Tanks patroled the streets, along with many police. The demonstrations took place daily. They were loud, scary, and the tension in the air was palpable. Riots broke out often, and crowd control was nearly impossible. One day tear gas was thrown from cannisters and the gas exploded near the book store. Our eyes were burning fiercely with temporary blindness from the irritation, and it affected our nose, mouth, and lungs. It was difiicult to breathe, and we coughed and sneezed at the same time. The good thing is after a while the nasty effects went away, as it was temporary. But, I'll never forget how awful that was.