A Washington Post investigation reveals ordinary internet users far outnumber legally targeted foreigners in the communications intercepted by the National Security Agency.
Former NSA contractor Edward Snowden provided a large number of intercepted conversations to the newspaper.
It found that nine out of ten of those, were not the intended surveillance targets. Rather, they were caught in a net the agency cast for someone else.
Many of the files were on Americans.
U.S. intelligence officials declined to confirm or deny the authenticity of the intercepted content.