Tear Gas: From the Battlefields of World War I to the Streets of Today

More than a hundred years ago, French troops fired the first tear gas grenades at the German enemy. Designed to force people out from cover, tear gas causes tearing and gagging, burning the eyes and skin. Its use has ended in miscarriages, permanent injuries, and death. While all but a few countries have agreed that it is illegal to manufacture, stockpile, or use chemical weapons of war, tear gas continues to prolif...