NSA (National Security Agency): The NSA is a U.S. government agency responsible for collecting and analyzing foreign intelligence and protecting U.S. communications and information systems. The agency is involved in signals intelligence (SIGINT) and has a wide array of capabilities related to electronic surveillance.
Cellular Technology: In the context of mobile communications, a "cell" refers to the basic geographic unit of a cellular network. Each cell has a base station (or cell tower) that communicates with mobile devices within that cell. The concept of cellular networks involves dividing a geographic area into multiple cells, allowing for efficient use of radio spectrum and accommodating a large number of users.
