The Vatican is hosting a high-profile meeting on child abuse by the clergy. It’s a topic that has been woefully overlooked, and one that threatens to define the tenure of Pope Francis. We visit the world’s largest building, in the city of Chengdu. Inside there’s a giant wave pool, thirty thousand workers, free cats—and a glimpse of the state of China’s economy. And, an effort to resurrect the native language of Hawaii has brought unexpected benefits.