GINNING UP A WITCH HUNT AT DUKE. In response to email about mandatory diversity training, Duke professor Bryan Cullen wrote, “My initial reaction is I refuse to engage in left-wing Maoist political propaganda workshops.” As if by magic, past, politically based grievances appeared on social media. Will my alma mater be wise enough to stick with its comment so far, which was that it has “nothing to add on this matter?” Time will tell…