Documents leaked by Edward Snowden have revealed the CIA has mushroomed into the largest U.S. spy agency with a nearly $15 billion budget as it expands intelligence, cybersabotage and overseas covert operations. On Thursday, The Washington Post published details about the so-called black budget of the nation’s 16 spy agencies. Altogether the spy agencies requested nearly $53 billion last year. More than half the money was split between the CIA, the National Security Agency and the National Reconnaissance Office. The documents also reveal the NSA is paying hundreds of millions of dollars a year to U.S. telephone and Internet companies for clandestine access to their communications networks. In addition, the black budget revealed that the United States has carried out counterintelligence operations against the governments of Israel and Pakistan, as well as Iran, Russia, China and Cuba.