Index held an event last night with Doughty Street Chambers, where a panel of experts discussed whether or not democratic freedoms have been eroded by mass surveillance programmes.

The panel included the Guardian’s Technology Editor, Charles Arthur, Stephen Cragg, QC (Doughty Street Chambers), Index Chief Executive Kirsty Hughes, and Liberty’s Policy Director, Bella Sankey. The discussion was chaired by Kirsty Brimelow (Doughty Street Chambers, Chairwoman of Bar Human Rights Committee of England and Wales.)

Check out the conversation below, and be sure to follow @IndexEvents for updates on our future events: