It had been 15 years since the U.S. invaded Iraq when, on March 19, 2018, the celebrated Iraqi novelist and poet Sinan Antoon published a blistering op-ed in The New York Times. He took readers through his observations of the steady deterioration of Iraqi society since the war began, but the most scathing words came toward the end. “No one knows for certain how many Iraqis have died as a result of…