Contrary to popular belief, there is no satisfaction in being able to say, “I told you so.” This is especially so with Iraq, where recent events are enough to sicken one’s stomach. Yet it still must be said: those who opposed the George W. Bush administration’s invasion of Iraq in March 2003 — not to mention his father’s war on Iraq in 1991 and the sanctions enforced through the administration of Bill Clinton — were right. The noninterventionists predicted a violent unraveling of the country, and that’s what we’re witnessing. They agreed with Amr Moussa, chairman of the Arab League,...