USC students, faculty and pro-Palestinian protesters responded to a call to action Thursday to fight back against what they say is the "institutional silencing" of valedictorian Asna Tabassum. "Let her speak! Let her speak!" the crowd of hundreds chanted, a few holding up signs bearing Tabassum's face. USC is barring the valedictorian from speaking at its May 10 commencement — a first in the university's 143-year history — over unspecified safety threats, Provost Andrew T. Guzman announced in a... Read this story