Fresh Leak on US Spying: NSA Accessed Mexican President's Email 20 Oct 2013 The National Security Agency (NSA) has a division for particularly difficult missions. Called "Tailored Access Operations" (TAO), this department devises special methods for special targets. That category includes surveillance of neighboring Mexico, and in May 2010, the division reported its mission accomplished. A report classified as "top secret" said: "TAO successfully exploited a key mail server in the Mexican Presidencia domain within the Mexican Presidential network to gain first-ever access to President Felipe Calderon's public email account." According to the NSA, this email domain was also used by cabinet members, and contained "diplomatic, economic and leadership communications which continue to provide insight into Mexico's political system and internal stability."