Back in the United States, the National Security Agency says it is curtailing one of its controversial mass surveillance programs, known as the “upstream” program. On Friday, the NSA admitted that an internal review found the program violated rules set by a secret surveillance court. Under the program, the NSA collected en masse Americans’ communications with people abroad if their conversations simply mentioned keywords designated by the agency. On Friday, NSA whistleblower Edward Snowden said, “The truth changed everything.”