In labor news, the National Labor Relations Board reversed itself yesterday and determined that graduate students at private universities do not have the right to unionize. This reverses a 2000 decision by the board that led to students at New York University forming the first graduate employees union. The American Federation of Teachers called yesterday’s decision “outrageous.” An official from the group said, “These people obviously are workers. If members of the N.L.R.B. can’t recognize a worker when they see one, they shouldn’t be on a national labor board.”