National Security Agency/Central Security Service Public Information (NSA/CSS). is a Tau'ri intelligence organization in the United States, run by the Department of Defense. Lt. Colonel Samantha Carter suggested that they would use a National Security Agency satellite for trace Osiris' Al'kesh to take back their Stargate. (SG1: "Endgame") Dr. Rodney McKay mentioned that there are levels of encryption on data in Janus' lab which the most paranoid NSA agent would not use. (SGA: "First Contact")