Betar US, a far-right pro-Israel group with a history of terrorism and incitement, is pushing to deport critics of Israel. Working closely with the Trump admin, it’s now targeting activists like Columbia’s Mahmoud Khalil. Alan Macleod investigates., Alan MacLeod investigation, Betar hate group, Betar US, campus activism crackdown, far-right Zionist groups, Mahmoud Khalil deportation, pro-Israel extremism, pro-Palestine repression, Trump anti-Palestinian crackdown, Trump executive order 2025,