Any picture can speak 1,000 words, but only a select few say something poignant enough to galvanize an entire society. The following photographs screamed so loudly that the entire world stopped to take notice.1. The Photograph That Raised the Photojournalistic Stakes: "Omaha Beach, Normandy, France"Robert Capa, 1944"If your pictures aren't good enough," war photographer Robert Capa used to say, "you aren't close enough." Words to die by, yes, but the man knew of what he spoke. After all, his most memorab...