Kerry: Some NSA surveillance work reached 'too far' and will be stopped

U.S. Secretary of State John Kerry is acknowledging that some National Security Agency spying has reached too far and will be stopped.

Kerry says that because of modern technology, some NSA activities have been happening on "automatic pilot" without Obama administration officials knowing.

He says ongoing reviews of U.S. surveillance work will ensure that technology is not being abused and that the Obama administration is going to make sure activities that have, quote, "reached too far" do not happen in the future.

Sweeping surveillance practices by the NSA have drawn the ire of other nations, who have called for investigations and have demanded the U.S. stop spying on allies.

Kerry spoke Thursday via video link to an open government conference in London.