Mark Zuckerberg, Priscilla Chan

In this Tuesday, Sept. 20, 2016, photo, Facebook CEO Mark Zuckerberg and his wife, Priscilla Chan, smile as they prepare for a speech in San Francisco. Zuckerberg and Chan have a new lofty goal: to cure, manage or eradicate all disease by the end of this century. To this end, the Chan Zuckerberg Initiative, the couple’s philanthropic organization, is committing significant financial resources over the next decade to help accelerate basic science research. (AP Photo/Jeff Chiu)