So Richard Ledgett is the 15th deputy director of the National Security Agency, and he's a senior civilian officer there, acts as its chief operating officer, guiding strategies, setting internal policies, and serving as the principal advisor to the director.
理查德‧莱杰特是第15任 美国国安局副局长， 他是一名资深的文职官员， 是首席运营官， 指导策略，制定内部政策， 并担任国安局局长的首席顾问。