This paper suggests that the instruction of computer security in the university environment should begin with a through examination of the 1970 Report of the Defense Science Board Task Force on Computer Security, "Security Controls for Computer Systems". Dr. Willis Ware was the chair of this task force in 1970. While the report itself is dated and the architectures discussed no longer exist, the problem identification contained in the report and the technical issues examined remain valid today - some 30 years after the report was released. Students having read this report prior to beginning a semester course appear better prepared to then understand and follow on with formal instruction in models, multilevel security, trusted operating systems, and the need for a holistic approach to the security problem. Teaching Saltzer and Schroeder’s principles is made far easier as is the need for trusted development environments, strong process control, policy enforcement, and accountability.