William Wan is a health and science reporter for The Washington Post. During the past two decades at The Post, he has reported from more than 20 countries and covered mass shootings and disasters, national security, the Obama presidency, foreign policy and religion. For three years, he was The Post’s China correspondent in Beijing. He has won awards for his coverage of religion and for his stories on human rights abuses in China. He was part of the 2010 Pulitzer Prize finalist team that covered the Fort Hood shooting. Before joining The Post, he worked as a reporter for the Los Angeles Times and the Baltimore Sun.