Joseph Slaughter, who has defended illegal encampments at the Ivy League school, helped write new guidelines surrounding campus protest rules.. As a member of Columbia University's top disciplinary body, Joseph Slaughter helped draft guidelines meant to provide students with a "contemporary understanding" of school rules on campus protests. As an English professor, he delivered a lecture that lauded a string of terrorist plane hijackings as "spectacular" and "remarkable," according to audio obtained by the Washington Free Beacon. During his Oct. 9 talk, titled "Hijacking Human Rights," Slaughter referenced "pretty spectacular" footage of Popular Front for the Liberation of Palestine (PFLP)...