Video Review


``Reliability and Risk: Computers and Nuclear War''


Reviewer:
Kevin W. Bowyer
Department of Computer Science and Engineering
University of South Florida

Review:
This video was produced by the Computer Professionals for Social Responsibility (CPSR) at the time when the computing requirements for Reagan's ``Star Wars'' program were a current issue. This copyright date for the video is 1986. The only real negatives in using this video in teaching stem from its age. A minor issue is that the actual computers depicted and discussed are relics -- at one point a ``Burroughs 6000'' is mentioned! A somewhat larger issue is that the world situation has changed substantially -- the Soviet Union is no longer the ``opposing super-power.'' However, the general concern of how much automation is feasible or desirable in a missile defense system is timeless and this video presents a good overview of the issues involved. The video opens with a short overview, and then talks about how software systems become reliable. There is a quote by Herb Lin of MIT to the effect that ``anticipating all contingencies is, as any programmer knows, a difficult thing.'' There is also mention of the airline reservation network having been developed over a number of decades. And there is mention of computer systems used in radiation therapy planning. (This was before the Therac-25 accidents.) The video then goes on mention the Aegis air defense system for missile cruisers and the SAGE ballistic missile defense system, before turning attention to President Reagan's SDI program. Several ``false alarm'' incidents are mentioned as examples of how difficult it is to build computer systems that replicate the role of human judgment in decision-making. The SDI program itself is the focus of the last part of the video. My favorite quote is from one SDI official who states that the code for SDI ``does not have to be error-free code, but fault-tolerant code. And if another million lines of code have to be written to make it fault tolerant, so be it.'' All in all, this should be a good short video to use in teaching, either in a general ethics-and-computing course or in an ethics module in a software engineering course.

(worksheet to go with this video)

Video Format/Length:
This video was viewed in VHS format. It is approximately 30 minutes in length.

Ordering Information:
This tape was originally produced by CPSR, and I obtained a copy through the CPSR Boston chapter. However, CPSR is no longer actively distributing the tape. Contact kwb@csee.usf.edu to inquire about obtaining a copy.


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