Columbia Business School professor Avi Friedman has resigned over the university's decision to appoint Joseph Massad, a professor known for praising Hamas, to teach a course on Zionism. Friedman called the appointment a deliberate choice that aligns with the university's ideology and represents a complete abandonment of academic integrity. This is the second resignation of a Columbia professor over Massad and his course on Zionism. Massad has taught the course since 2016 and has received criticism for his rhetoric and views on Israel. Columbia addressed the controversy in a statement, but Friedman called it inadequate and disingenuous.