cheating, teachers, and technology

From last week's presentations, I was especially grateful for the information on detecting student cheating. I am glad to know about all of the resources that are out there to help me as a teacher. The issue of cheating in the classroom is one that I think about a lot. There is a film that really has facilitated some of my thinking. The movie is The Emporer's Club. In the film, Kevin Klein is a teacher at a private school. He finds out that his student that he liked a lot was cheating in an academic competition. For various reasons, he lets the cheating pass. Then, many years later, he comes to discover that this former student, now an important figure in society, still resorts to cheating for personal gain. How responsible was Kevin Klein's character? How responsible are we, as teachers, for the honesty of our students? Let me know what you think.