The File: Case Study in Correction (1977-1979)The File is a collection of documents from a major dispute involving a number of American college professors, mainly mathematicians, statisticians, and sociologists. The controversy was ignited by the mathematician Serge Lang's reaction to a questionnaire, "The 1977 Survey of the American Professoriate", distributed by E. C. Ladd of the University of Connecticut and S. M. Lipset of Stanford. The ensuing discussion in part acrimonious and personal soon