The detention of Columbia university student, Mahmoud Khalil, is unequivocally chilling. Khalil, who helped lead the Gaza solidarity encampment at Columbia university last year, was targeted for his politics. His unlawful arrest by the US immigration enforcement agency comes amidst relentless smears lobbed at protesters of Israel’s war on Gaza. This McCarthyite abduction of a Palestinian Green Card holder is a trial balloon, a test of what society might tolerate and a threat of more to come. And the added horror-show twist to this assault on free speech is that it is being done in the name of Jewish people...