Professors John Mearsheimer and Richard Falk Cross a Red Line: As the discourse about Israel on university campuses continues to degenerate, there is growing concern that some of Israel’s most vocal detractors are crossing a red line between acceptable criticism of Israel and legitimizing anti-Semitism. The recent endorsements by several internationally prominent academics – including John Mearsheimer and Richard Falk – of an overtly anti-Semitic book written by a notorious Jew-hater illustrate this dangerous trend.