Sir John Sawers, chief of the Secret Intelligence Service – known as ‘C’ in Whitehall, is the first serving MI6 chief to deliver a public speech on international terrorism – follow it live here.
Sir John’s speech marks a historic moment for MI6, as the first serving MI6 chief to deliver a public speech in the organisation’s 100-year history. His address, to a meeting of the society of Editors, follows another first – the first public speech by Iain Lobban, director of GCHQ – the electronic eavesdropping agency – who focused on the threat of cyber warfare.
Here, you can watch the live stream of Sir John’s speech and comment on the live blog above. You can also follow our news team on Twitter @channel4news.