William Evanina holds two official job titles: national counterintelligence executive and director of the National Counterintelligence and Security Center.
Eyes glazing over? Here's a simpler way to think of him: as the nation's spy catcher in chief.
As the head of U.S. counterintelligence, Evanina is in charge of keeping America's secrets out of enemy hands. 2016 has proved an exceptionally challenging year, between Russian hacks and another massive data breach at the National Security Agency.