Dale Brigham, a nutrition professor at the University of Missouri, implored his students not to cave in to “bullies†when he said an exam scheduled for today would proceed. He was apparently talking about the fear among black students owing to threats posted on Yik Yak yesterday. Brigham’s alleged indifference to his students’ fears led them to savage him on social media, some in incredibly crude terms, and now Brigham has resigned, he confirmed to local station KOMU: “I am just trying to do what I think is best for our students and the university as an institution,†Brigham said...