Yup. There was information about the NSA's Echelon program floating around for decades before Snowden. Check out the Public Disclosures section of this Wikipedi

Yup. There was information about the NSA's Echelon program floating around for decades before Snowden. Check out the Public Disclosures section of this Wikipedia article: https://en.wikipedia.org/wiki/ECHELON https://en.wikipedia.org/wiki/ECHELON Despite multiple whistleblowers dating back to 1972, no one took it seriously until the Snowden leaks confirmed it without any doubt. For forty years this information remained below the surface.