Federal agents arrest Palestinian activist Mahmoud Khalil in New York

Federal agents arrested Mahmoud Khalil, a Palestinian activist and Columbia University graduate student, in a video released on Friday. The arrest occurred in his apartment building lobby, alarming free-speech advocates and his pregnant wife, Noor Abdalla. Khalil, a lawful U.S. resident, had his permission to stay revoked due to his involvement in pro-Palestinian protests. The Justice Department is investigating whether Columbia University concealed illegal immigrants on campus. Khalil's lawyers have challenged his detention, stating he was moved from New York to Louisiana after his arrest. He is currently held in an ICE detention center, concerned about missing the birth of his first child.