Hague: Law-abiding Britons have nothing to fear from GCHQ

"Law-abiding" citizens have "nothing to fear" from the British intelligence services, the foreign secretary says.

William Hague said reports that the UK's eavesdropping centre GCHQ had circumvented the law to gather data on British citizens were "nonsense". But he refused to confirm or deny claims GCHQ has had access to a US spy programme called Prism since June 2010.

Meanwhile, a former CIA technical worker has been identified by the UK's Guardian newspaper as the source of leaks about US surveillance programmes.

Gordon Corera reports.