For her next act, Jane Fonda has entered the war against the Iraq war. At the tail-end of yesterday's on-the-Mall rally, organized by United for Peace and Justice, Fonda stood onstage with the Capitol behind her and addressed the sun-drenched thousands. "I haven't spoken at an antiwar rally in 34 years," she said. But, "Silence is no longer an option." The first time Fonda, 69, spoke out for peace, the country was soul-deep in the Vietnam War. In the ensuing decades, as the nation has gone through a slew of changes, so has Fonda. As a young woman, the daughter...