Turns out that Saddam Hussein himself believed he actually had weapons of mass destruction and could use them, indeed, had used them before.
Where exactly Saddam's WMDs went is unknown, nor is it known who, if anyone, in the Bush administration realized Saddam's WMD weapons storage bunkers were actually empty.
This was the real problem in Iraq:
Today Iraq is still struggling, but does have a legitimately elected government and a more stable political-social-economic environment than, say, 20 years ago.
Iraq's oil production today is roughly double what it was in, for example, the year 2000.