OCT 20 1965, OCT 21 1965; CU Professors Answer 'Red - Tinge' Charges; From front to rear are Prof. Leslie Fishman, Associate Prof. Richard B.Wilson and Prof. Howard Higman, who were named in report to U.S. Senate subcommittee on the teach-ins at CU Professors denied report's allegations.; (Photo By Duane Howell/The Denver Post via Getty Images)

OCT 20 1965, OCT 21 1965; CU Professors Answer 'Red - Tinge' Charges; From front to rear are Prof. Leslie Fishman, Associate Prof. Richard B.Wilson and Prof. Howard Higman, who were named in report to U.S. Senate subcommittee on the teach-ins at CU Professors denied report's allegations.;  (Photo By Duane Howell/The Denver Post via Getty Images)