In this August 30, 2017, photo, a man give a child a ride past a cross at what used to be the site of a church in the Chinese border town of Changbai in northeastern China's Jilin province. Missionaries in northeastern China are engaged in a dangerous work: spreading Christianity across the border to North Korea. A South Korean pastor says at least 10 such front-line missionaries and pastors have died mysteriously in recent years. (Photo by Ng Han Guan/AP Photo)
