Whitman College called off classes Thursday for a day of diversity programs after photographs appeared online of some students wearing blackface at a party, as part of an attempt to dress like participants in the “Survivor” reality television show in which team members were divided by race, the Associated Press reported. At Texas A&M University, officials are denouncing an online video by three students in which one student, in blackface, plays the role of a “slave” who is whipped and sodomized by his “master.” Students have been holding forums about and protests of the video.