Is Alan Greenspan living in Fantasy Land?

I was dismayed the Alan Greenspan would write that he thought that Iraq was invaded over oil. If that was the reason, we made a big mistake. You know that was not the reason, however, but because we considered Saddam a security threat who needed to be "taken out". Everyone agreed that was a good idea in early 2002. We just weren't ready, for some reason, until 2003 to start the job.