Britain’s top counter-terrorism official says the country’s espionage rules allow its electronic spy agency to routinely intercept online communications between Britons who use US-based platforms such as Facebook, Twitter and Google.

G4S faces continued pressure today over the Olympics security debacle, as share prices continued to fall.

The head of G4S today insisted he was the right man to make sure the firm delivered as many Olympic guards as possible, despite the on-going security debacle.