A federal judge has ruled that Columbia University activist Mahmoud Khalil cannot be detained or deported by the Trump administration. The ruling comes amid claims that Khalil poses a threat to U.S. foreign policy, which the judge dismissed as insufficient grounds for detainment. Khalil, who has been held in custody for nearly three months, is a prominent voice against issues in Gaza and has faced legal challenges related to his activism. The judge has ordered the government to release him by Friday unless an appeal is filed. This decision has been welcomed by civil rights organizations, with advocates highlighting the psychological harm caused to Khalil and his family during his detention.