In early January, an insidious international radical Islamist movement outlawed in at least a dozen countries was forced to cancel its conference in Canada on how to establish a global Islamic caliphate by toppling governments. It was the second year in a row that organizers shut the event down.

While it is a welcome development, it’s not enough. The Trudeau government must follow in the footsteps of Germany and the United Kingdom and ban the group behind the event, Hizb ut-Tahrir (Arabic for “Party of Liberation”).