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In a tumultuous year that witnessed the fall of Arab tyrants and the U.S. withdrawal from Iraq, proponents of the 2003 invasion, including former Vice President Dick Cheney and conservative academic Fouad Ajami, have sought to portray the decision to topple Saddam Hussein's regime as the hidden driver of the Arab Spring. But rather than revisit history, why not -- on this one-year anniversary of Tunisian strongman Zine el-Abidine Ben Ali's downfall -- try our hand at alternate history: If the U.S. had never invaded Iraq, would Saddam's Baathist regime still be standing in today's Middle East?