Several Columbia professors have canceled classes or made them hybrid in response to the arrest of a pro-Hamas activist in ICE custody. The cancellations came after faculty members received emails from the Columbia Students for Justice in Palestine calling for no in-person courses for the rest of the week. The professors who canceled classes cited sensitivity to the situation and concerns for student preparation for exams. The cancellations have raised questions about how school administrators will enforce the requirement to hold scheduled classes. The arrest of the activist has sparked controversy and debate on campus.