Palestinian activist's arrest raises student protection concerns

The arrest of Palestinian activist Mahmoud Khalil has raised concerns about the protections for foreign students and green card holders in the U.S. Khalil was detained by Immigration and Customs Enforcement, linked to his role in protests at Columbia University. Khalil, a lawful permanent resident, is being held in Louisiana while awaiting immigration court proceedings. His arrest has been criticized as targeting his activism, despite him not being charged with any crimes related to terrorism. Khalil's case highlights the complexities of immigration law, as green card holders can be deported without a conviction if authorities believe they may engage in terrorist activities. A federal judge has temporarily halted his deportation while his lawyers challenge the detention.