Recently it was leaked that the National Security Agency tapped into primary overseas communication links that connect Yahoo and Google data centers around the world. According to former NSA contractor Edward Snowden, the agency has access to raw data from hundreds of millions of internet users, and many of them are Americans.

This is not the first disclosure from Snowden about NSA operations. Snowden is currently living in Russia after being granted temporary asylum following his release of other top secret NSA documents, including those about another agency surveillance program called PRISM.