The International Holocaust Remembrance Alliance (IHRA) working definition of antisemitism has been deployed all over the world to stifle and even make illegal any support for Palestinian rights. Yet its proponents continue to say it is just a non-binding guideline, a suggestion. This is disingenuous, to put it kindly, as a new report from the European Legal Support Center makes clear in its analysis of a wide range of cases in the UK, Germany, and Austria. I examine their report and the horrifying impact of the IHRA definition not only on the struggle for Palestinian rights but also on the battle against antisemitism in my latest piece for Mondoweiss.