Cyber-warfare

The head of MI6, Sir John Sawers, denies that his agents engage in torture. Foreign Affairs Correspondent Jonathan Rugman says the historic speech is an attempt to combat negative media coverage.

A human rights group claims cyber attack knocked it offline following the release of an alleged torture video. An international security expert tells Channel 4 News this attack lacks “sophistication”.

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.

The Royal Navy’s flagship aircraft carrier HMS Ark Royal is to be scrapped along with its fleet of Harrier jets as the coalition prepares to announce cuts in the Strategic Defence and Security Review.

David Cameron presents the Strategic Defence Review, cuts are expected to fall on the army in Germany, the Navy’s carrier fleet and RAF aircraft. Follow it as it happens on our live blog.

Cheap petrol, expensive cocaine, rescue at sea, every computer you use today. They’re all in play in the Defence Review, writes Carl Dinnen.

Terrorism and cyber-attacks are top of the list of national security threats in what ministers are calling “an age of uncertainty”.