Media playback is unsupported on your device

Barack Obama orders curbs on NSA data use

17 January 2014 Last updated at 23:14 GMT

President Barack Obama has ordered curbs on the use of bulk data collected by US intelligence agencies, saying civil liberties must be respected, but campaigners have said the changes do not go far enough.

The announcement follows widespread anger after leaks revealed the full extent of US surveillance operations.

Mark Mardell reports.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.