I suppose, in the end, we journalists try - or should try - to be the first impartial witnesses of history. If we have any reason for our existence, the least must be our ability to report history as it happens so that no one can say: 'we didn't know - no one told us.'

Why is it that we go to immense lengths getting the Serbs who were responsible for the massacre of 7,000 at Srbrenica - that's slightly more than the total figure for New York - and we take them to a tribunal in The Hague, and one after another, we arraign them, try them, convict them, and punish them in front of the world, but no plans have been brought forward to get bin Laden and his friends and put them on trial?

Whether Osama bin Laden is doing it cynically and has no interest in these matters, or whether he's doing it out of genuine conviction, his voice has a tremendous resonance throughout the Arab world. One editorial in a Lebanese paper said it is a matter of great humiliation for the Arabs that the only man who can outline, truthfully, what our humiliations are is an Arab who has to say it from a cave in a foreign country.

Even my landlord, who is a moderate Lebanese guy, says, "But bin Laden says what we think." These people believe that bin Laden is being targeted not because of the World Trade Center and Washington; they are not convinced by the evidence that has been produced. They believe he's being targeted because he tells the truth.

And I think, in the end, that is the best definition of journalism I have heard; to challenge authority - all authority - especially so when governments and politicians take us to war, when they have decided that they will kill and others will die.

Osama bin Laden is very shrewd. But he struck me, even in 1997, as being remarkably out of touch. I remember thinking this does not look like the type of guy who walks to the top of a mountain with a mobile phone and says, "Operation B, attack."Now he is America's number one enemy. He's always wanted to be that.

We live in a society in the West, where, when men do violent things, they do them under orders. They are soldiers carrying out orders or mafia men carrying out killings for bosses. But the way things happen in the Middle East is not the same as in the West.