In this Oct. 31, 2017, file photo, students attend a class in the school of the National Security Agency in Langley, Va.
The National Security Administration (NSA) has been under scrutiny for spying on American citizens, including in the United States.
More than half of the U.S. states and the District of Columbia have reported problems with the agency, which has been accused of widespread surveillance.
The NSA also operates a massive data center in Utah.
The White House says the agency has a “strong record of transparency and accountability.”