Advertisement'Persistent Engagement': The Phrase Driving A More Assertive U.S. Spy AgencyAugust 26, 2019Greg MyrefacebookEmailThe director of the National Security Agency, Gen. Paul Nakasone, often speaks about "persistent engagement" as a way to keep up pressure on adversaries in cyberspace. Since he took over last year, the spy agency has been pursuing a more assertive approach. (AP)