The Turkish DNA Project, an online endeavor to track Turkish genetics, is enraged at the popular genealogy site Ancestry.com and has called for it to be boycotted for stating an inconvenient truth: many, and possibly most, modern Turks are the descendants of the Greeks who once formed the overwhelming majority of the population of the land that is now Turkey. In this as in so many other instances, the truth hurts, but that doesn’t make it any less the truth.