A NOTE TO OUR READERS: We are saddened to report that the Iranian photojournalist, whose pictures appear in this gallery, is missing. He has not been in contact with us; this morning we received the following email from one of his relatives. We will update this space when we have more details. THE EMAIL: Hi im [photographer’s relative], when he go out side yester day for he never came back home and also his friend and a lot of our young brave people, government arrested them [. . .] don’t let them suffer in those bloody hands. With thanks. Pictured: A young woman amid the tear gas.