Mahmoud Khalil’s arrest has chilling effect on free speech at US colleges

Last weekend’s arrest of Mahmoud Khalil, a Palestinian refugee whose green card was revoked over his involvement in demonstrations at Columbia University, is having a chilling effect on college campuses across America, where students say they’re being forced to think carefully before exercising their constitutionally protected right to free speech.

​ Last weekend’s arrest of Mahmoud Khalil, a Palestinian refugee whose green card was revoked over his involvement in demonstrations at Columbia University, is having a chilling effect on college campuses across America, where students say they’re being forced to think carefully before exercising their constitutionally protected right to free speech. Read More Breaking News, Latest News and Videos | CNN