Firstly, I just like to say my heartfelt condolences goes out those families who have had to see their loved ones butchered in such a horrendous and public way.
The american government should have had a well-thought out proper pre-organised plan (with collaboration with the respective parties and UN) on how to restructure Iraq before they went to war, not make it up as they go along, after the war, honestly !
As Frank said 'I smell a rat '
With regards to the Israelies and Palestinians, I don't think the Israelies have achieved much except more paranoia and insecurity for themselves. The Palestinian mindset is that they have nothing to lose and they are a very determined people, the more you hit them, the more they are going to strike back.
It is such a shame that the Palestinian leadership lacks influence with militant wing of their people and the Israelies are too stubborn to compromise as well. I feel that the whole root conflict in the Middle East is due to unresolved this Israel/Palestine issue.