Why is pro-Palestinian activist Mahmoud Khalil suing Columbia University? North America World Thu, 17 Sep 2026 11:02:46 GMT Moderate confidence — 74/100 Recommended Stories list of 3 itemslist 1 of 3Mahmoud Khali Unverified Recommended Stories list of 3 itemslist 1 of 3Mahmoud Khali Sources: Al Jazeera