It's always sort of amazing, sitting in Baghdad, to watch visiting dignitaries being received in the Green Zone by politicians who have usually very little support and seldom go outside the Green Zone.

But from the moment George Bush decided to overthrow Saddam, the people who were going to benefit here were the Shia, who are 60 percent of the population. So if you were ever going to have an election, then the Shia would take over.

I don't think the whole of Iraq would be under al-Sadr, but I think he would be the predominant force on the Shia side. Quite contrary to his sort of maverick, firebrand image, he's shown a propensity to deal with the other side, to look for compromises, to negotiate. You might have a loose federation [in Iraq].

A defeat for ISIS in Iraq will be defeat for ISIS in Syria.

Muqtada is radical in the sense that he wants the U.S. occupation to end and has always said so from the beginning. Secondly, his support among the Shia really runs along class lines; it's mainly the poor who support him. His organization runs an enormous social network.

One of the problems with the media covering this place is that there are stereotypes of news, one of which is "war rages" and the other is "peace dawns." And there isn't much in between. When I talk to foreign journalists, often they are gritting their teeth because they've been asked for a piece about how shops are reopening and restaurants are reopening and so forth - happy pieces. And it just ain't so.

Young Shia who have been brought up with nothing, who are pretty anarchic, pretty dangerous. In 2004 when they came close to killing me, and of course they have killed very large numbers of other Iraqis. That's a major source of strength for Muqtada.