We have had a huge number of e-mails from listeners to the BBC World Service and readers of BBC News Online, all of whom wanted an opportunity to take part in today's programme.

BBC: Nelson Mandela and Graca Machel

It will look at output on BBC national TV and radio, online and BBC World News.

BBC: extends deal to broadcast Wimbledon until at least 2017

If found, "it will be the world's eighth wonder, the world's largest statue, " he told BBC News Online.

BBC: The hunt for Bamiyan's third Buddha