acm-header
Sign In

Communications of the ACM

Inside risks

What Lessons Are We Teaching?


Recently, the New Jersey Institute of Technology's (NJIT's) Homeland Security Technology Systems Center proposed "smart" cameras that would identify everyone entering school premises and send out an alert when an intruder is discovered. That plan follows a similar action by a middle school in Phoenix, AZ, which in 2003 installed video cameras and face-scanning technology at its doors that linked to national databases of sex offenders and missing children. These are ambitious versions of proposals being discussed by school administators in many locations. In a post-9/11, post-Beslan world, closed-circuit television (CCTV) is the newest idea for public schools. CCTV in schools is not universally embraced, however. For example in Israel, where public-safety issues are paramount and security guards stand in front of nightclubs, shopping malls, restaurants, and many other locations, video cameras are not routinely used in schools.

What dangers are these cameras intended to protect against? The model proposed by the NJIT would not have prevented the Columbine tragedy; the two students had every right to be on campus. Nor would video cameras have prevented the Beslan school takeover, because the weapons that enabled the hostage-taking incident were hidden when the Russian school was under construction. But on the other hand, such cameras probably would catch kids involved in inappropriate activities—smoking, hanging out instead of being in class—why not invest?

For one thing, with a false positive rate of 1%—10 false alarms every morning in a school with just 1,000 students, teachers, and staff—it is doubtful that facial-recognition systems would work. How long would videotapes be stored? Who would have access to the videotapes? What risks would this introduce? Can we really expect schools to adequately secure online files of student and staff records, records that, by necessity, must be Internet accessible?

Video cameras in schools introduce a different set of issues as well. Consider, for a moment, the role of public schools in society. "[T]he individual who is to be educated is a social individual and ... society is an organic union of individuals," wrote John Dewey in 1897 in "My Pedagogic Creed" (The School Journal LIV, 3 pp. 77–80). According to Dewey, whose theories of progressive education profoundly impacted public schools, "The only true education comes through the stimulation of the child's powers by the demands of the social situations in which he finds himself. Through these demands he is stimulated to act as a member of a unity ... and to conceive of himself from the standpoint of the welfare of the group to which he belongs." The unspoken, but vital, role of public school is in creating a cohesive society. In a nation as diverse as the U.S., and that many others, including France, the U.K., and The Netherlands are becoming, such socialization is critically important.

Seen from that perspective, the lessons from CCTV in schools are quite disturbing. Video cameras in schools teach children that in a public space, eyes you can't see may be watching you. Video cameras in schools demonstrate to students that you don't have any privacy (get over it). Video cameras in schools show disrespect for freedom of speech and freedom of association. ("Congress shall make no law...abridging the freedom of speech, or the right of people to peacefully assemble..."; First Amendment of the U.S. Constitution.)

And video cameras in school hallways are one small step away from video cameras in classrooms; what better way to stifle teachers' creativity and experimentation?

Benjamin Spock, Penelope Leach, T. Berry Bazelton, and other experts in child behavior tell us that children learn not from the lessons we deliberately set out to teach, but by osmosis. Children learn not from what we say, but from what we do. In the end, that makes the choice about CCTV in schools quite simple. After all, when we teach 1984, what is the lesson we are hoping to convey to the students—the one that comes from a critical reading of the text, or the one that comes from surveillance cameras monitoring students' and teachers' every move?

Back to Top

Author

Susan Landau ([email protected]) is a senior staff engineer at Sun Microsystems and co-author, with Whitfield Diffie, of Privacy on the Line: The Politics of Wiretapping and Encryption, MIT Press, 1998. She attended New York City public schools.


©2005 ACM  0001-0782/05/0600  $5.00

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise, to republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee.

The Digital Library is published by the Association for Computing Machinery. Copyright © 2005 ACM, Inc.