NSA 'tracking' hundreds of millions of mobile phones

Almost five billion mobile phone location records are logged by the NSA every day, reports the Washington Post.

The data is said to help the NSA track individuals, and map who they know, to aid the agency's anti-terror work.

The "dragnet surveillance" was condemned by digital rights groups who called for the NSA's snooping efforts to be reined in.

The news comes as Microsoft plans to use more encryption to thwart NSA spying on it and its customers.

Read BBC Article