I don't think we should have gotten into Iraq at all. I had a friend who worked for the CIA at the time and he's been pretty clear on the topic of WMDs and the total lack of evidence of any WMDs in Iraq. It was not what the administration wanted to hear though so we went to war in Iraq. Another friend was a case officer in Afghanistan who watched as US troops and diplomatic staff were greeted as heroes when we first when in - but between the third rate diplomats that were sent and the military going in with a "treat them all like rag heads" attitude, by the time he left 18 months later, they pretty much all hated us and wanted us to go home.
We failed to learn anything in Vietnam and we failed to learn anything from the Soviet experience in Afghanistan, and now we're repeating those mistakes in a 10 year old conflict with no end in sight and now we've got 6,600 dead soldiers, nothing to show for it, and no real exit strategy that will lead to any lasting peace. If anything, we've just given a few generations of Iraqis and Afghans a valid reason to hate us.
We should have done what the Israelis do - quietly go about hunting down and killing all those involved with minimum collateral damage and adopt real security rather than TSA passenger harassment.
We should not have let 9/11 change our way of life, our economy or our personal liberties and freedoms as when we did that, we handed them the victory they sought.
What we did, in addition to creating generations of terrorists who hate America was create the appearance of doing something rather than actually doing something of substance, and provided a wonderful bottom line for military contractors who have made big bucks off a decade long war that continues to cost us a couple billion dollars a week.
I'm mad about that. I'm mad about 6,600 dead American soldiers who willingly gave their all for leaders who do not deserve that sacrifice and I'm mad that with better political leadership the majority of them would not have needed to die, and I'm mad about the hundreds or thousands more that will die before we extricate ourselves from this mess. I'm mad at our politicians who lack the intelligence, foresight or integrity to make smart decisions and I'm mad about the ignorant masses that keep voting them into office.
The actual terrorists out there are pretty far down the list of people I'm mad at.