"A failed Iraq would make America less secure," Bush said. "A failed Iraq in the heart of the Middle East will provide safe haven for terrorists and extremists. It will embolden those who are trying to thwart the ambitions of reformers. In this case, it would give the terrorists and extremists an additional tool besides safe haven, and that is revenues from oil sales."
Please note that Iraq was not a "safe haven (for) terrorists and extremists" until the United States invaded.
But I digress.