Frances Harrison: Reporter puzzled by how to cover the Teheran Holocaust meeting

Iran has been severely criticised for hosting a conference questioning the Holocaust. Delegates included not only some of the world's best-known Holocaust deniers, but also white supremacists and anti-Semites.

In the BBC there's a lot of talk about impartial broadcasting. I've always wondered how that would work if you were the BBC correspondent in Nazi Germany reporting on Hitler.

Would you not have to take sides? Well I got closer than ever before to this problem reporting on Iran's Holocaust conference.

I have interviewed suicide bombers, sexually-abused children, raped women - I have seen the devastation of war and the tsunami.

But I have never reported on anything like this. On the second day some of the delegates were coming up to me congratulating me on my coverage of the story.

I was actually lurking around wondering if they wanted to kill me for calling them Holocaust deniers and members of the Ku Klux Klan.

Quite the contrary - all publicity is good publicity for these sort of people. They were delighted to have made it onto the BBC and did not think being called a holocaust denier was at all insulting.

Only one Malaysian woman whose interview I didn't broadcast looked at me rather sourly. ...