U.S. spying controversy

The National Security Agency has tapped directly into communications links used by Google and Yahoo to move huge amounts of email and other user information among overseas data centers, the Washington Post reported on Wednesday.

The report, based on secret NSA documents leaked by former contractor Edward Snowden, appears to show the agency has used weak restrictions on its overseas activities to exploit major U.S. companies' data to a far greater extent than realized.

The Post said the operation gained access to a cable or switch that relayed the traffic through an unnamed telecommunications provider. (Getty)