Welcome back. North Korea remains one of the world's most isolated and secretive countries... but it has just hosted some high profile visitors. The former US ambassador to the UN, Bill Richardson, led a delegation to Pyongyang. But most attention was focussed on another member of the team - Eric Schmidt - the chairman of Google. Schmidt said he told officials the country needs to open broaden the use of the internet - currently it is believed only 1000 select people have access to it.