“A kangaroo court,” U.S. Secretary of State Mike Pompeo called The Hague’s International Criminal Court on June 11, shortly after President Trump imposed on it sanctions for its allegedly discriminatory treatment of the United States and Israel. I don’t doubt the allegation, especially when it comes to Israel. But where, I found myself wondering, does the expression “kangaroo court” come from? I must have seen and heard it hundreds of times without stopping to look into the matter.