'Help whistleblowers' - Berners-Lee

Whistleblowers like Edward Snowden should be protected, the inventor of the web Sir Tim Berners-Lee has said.

He was talking to the BBC's technology correspondent Rory Cellan-Jones as he launched his World Wide Web Foundation's annual web index report, tracking global censorship.

It suggests that 94% of the countries in the index do not adequately monitor government internet interception.