That's the part I was talking about, even the 2003 war was more than just a blunder, it was a pack of lies. But why lie? Hidden interests of course. Of which you can find a thousand reasons for here on the net.
The Muslim world has been in a state of shock since the 1980's. Propaganda the extremists have been much better at. Even in Afghanistan, all important figures past ad present readily accept that the Taliban have won the propaganda war, that's why Obama pressed hard on the 'Hearts and minds' stuff, and even that failed to cover the damage.
Al Qaeda, and ISIS cannot be compared. AQ was born of, lived under and made it's name in entirely different circumstances AND regions. ISIS is a product of the Iraq war, and the war in Syria and is influenced by, but is not Al Qaeda.
Confused people are everywhere, but only a confused Muslim is vulnerable to ISIS like groups, all he has to do is stay awake the last few years and be angry at the world for the injustice he sees back home, all he has to do is absolve himself and his people of blame (which is very easy, human nature). If he does that he is vulnerable to harbouring sympathies for ISIS. Also this whole Islamic State thing is new, the Taliban had their own, but it was less pronounced. Whoever these ISIS people are, they are smart and their leaders have employed deadly propaganda in things as arbitrary and unsuspecting as the name of the group itself. It's a parasite.
Everything, even their name is the most despicably clever tool I've ever seen used by an extremist group. They leached off the conflict in Syria to become something, they then used the sectarian divide and propensity for violence left over by the Iraq war to easily sweep across the land, driving back the Iraqi army and taking the whole world by utter surprise and shock. Their declaration of an Islamic State, their hidden leader, their beheadings.
Probably the most talked about story internationally, this sort of story sells in the media. And whether it sells a good image or bad, the purpose of the propaganda is done. ISIS has used the Western media to propel it's propaganda.