Constitutional lawyer Glenn Greenwald joins 'MediaBuzz' to discuss Columbia student Mahmoud Khalil facing deportation over his role in organizing anti-Israeli protests.

Appeals to Khalil’s free speech rights are meritless. A green card is not synonymous with citizenship, though many seem to believe otherwise. Indeed, the federal government has the power to revoke a green card at any time, consistent with its statutory authority and assuming due process.

Protests erupted at Columbia University on Friday (March 14) as demonstrators demanded the release of student activist Mahmoud Khalil. Sherry Wolf, a union organizer said she was "horrified" by Khalil's deportation.

Dozens of people marched from Times Square to Columbus Circle on Saturday, calling for the release of Palestinian activist Mahmoud Khalil, a Columbia University graduate student and green card holder.

Hundreds of demonstrators marched from Times Square to Columbus Circle in New York on March 15 to demand the release of activist and US green card holder Mahmoud Khalil. Mahmoud was arrested by immigration personnel on March 8 for his role in pro-Palestinian protests at Columbia University which riled up “anti-Jewish” sentiment and amounted to support for Hamas.