Cologne, Germany - Luke Strand walked toward this city's historic cathedral on Wednesday, quietly reciting the rosary. Distractions squeezed by the 24-year-old Milwaukee man. Exuberant Italian young people, arms linked together, pushed past. Nearby, a large group of Chileans chanted in Spanish. Strand, who is studying to become a priest, smiled at the scene. "I'm tired and exhausted, but this is the beauty of it. We're on a pilgrimage," he said. Strand had traveled to World Youth Day in Cologne - not for solitude, but for solidarity. About 325,000 young Catholics from nearly 200 countries have already arrived for the...