Thousands of athletes joined victims of the Boston Marathon bombings to run and walk the last mile of the race today, reclaiming the triumph of crossing the finish line. About 3,000 runners and bombing victims gathered in light rain this morning to run the final mile of the world's oldest annual marathon. The event, known as OneRun, ended at the official finish line. The idea was not only to honor first-responders and victims, but to let runners who didn't get a chance to finish do so. (More Boston Marathon bombing stories.)