We issued this report upon learning of a tense debate within the U.S. State and Defense Departments over whether to allow the export to Turkey of the most advanced and deadly cluster bomb in the U.S. arsenal, the CBU-87. Those who oppose the sale based on Turkey’s appalling human rights record are squared off against those who fear damage to the “strategic relationship” if the sale is denied. The CBU-87’s “combined effect” is its ability to be used both as an antitank and antipersonnel weapon. The CBU-87 could be used in Turkey’s counterinsurgency war with Kurdish rebels, with dire consequences for the civilian population, as the Turkish government has a well-documented record of contempt for civilian life during military operations.