To blame Obama for WoT mess is completely unacceptable, if anything Bush and Cheney messed it up in the first term of Bush Jr. Now it is way too late, It should have been Pakistan and Afghanistan, not Iraq.
I am in total agreement with you about the WOT mess. When 911 took place and the rhetoric started against the Saddam's rule in Iraq. It was at that time I was convinced that they are going after Saddam itself rather than Iraq. If you can recall Bush Jr. meeting Arab Gulf leaders at his Texas ranch, It was a clear indication that they are being briefed about the upcoming war against Iraq. We should not forget USA and Saudi Arabia are in bed together and that is not going to change in the near future.
Your point is well taken that main target should have been Pakistan and Afghanistan. How would they have dealt with the nuclear threat from Pakistan is an open question. I still think President Obama will have to carry out the ultimate assault of the same kind as was done Iraq that is complete destruction of Pakistan's agencies that is Armed Forces and intelligence agencies.Nothing should be spared and get hold of all nuclear research facilities and arsenal itself.
If and when the operation is undertaken it will be many times bigger than first attack on Afghanistan or Iraq. They might be already doing the exercises with multi national forces somewhere in USA or with in Afghanistan. Do you think Russia will be part of the team as well? It will have to be massive attack so that they do not give any chance to them to use the Nuke's at all.