"As far as I personally was concerned, there came a point with the presentation of the so-called evidence, with the moment when Colin Powell sat down at the UN General Assembly and unveiled what he said was cast-iron evidence of things like mobile, biological weapon facilities and the like...
"When I saw all of that, I thought, well, 'We know that Colin Powell is an intelligent, thoughtful man, and a sceptical man. If he believes all this to be the case, then, you know, he's seen the evidence; I haven't.’
"Now that evidence turned out to be absolutely meaningless, but we only discover that after the event. So, you know, I’m perfectly open to the accusation that we were hoodwinked. Yes, clearly we were."
That's Jeremy Paxman, who is generally considered to be one of the tougher people at the BBC.
From this, which is well worth reading