Karl Hofmann is president and CEO of Population Services International, a Washington, D.C.-based global health nonprofit focused on family planning and reproductive health, malaria, child survival, HIV, maternal and child health, and NCDs. Before joining the organization in 2007, he was a career U.S. diplomat for 23 years, serving as ambassador to Togo, executive secretary of the Department of State and deputy chief of mission at the U.S. embassy in Paris.