Apparently one of the things to do with freshman philosophy students is to get them to think about the Trolley problem.
There is a truly marvellous proof of the answer to this problem, but there is insufficient storage capacity on Blogger for it.
Further Info:
"The Expert Mind" by Philip E Ross, Scientific American, 24 July 2006
"Folk Science" by Michael Shermer, Scientific American, 24 July 2006
"An Evolutionary Theory of Right and Wrong" by Nicholas Wade, The New York Times, 31 October 2006 (registration required)
"Gen Ys in short supply to fill gap left by boomers" by Bernalt Salt, The Australian, 8 March 2007
"A new crop of kids: Generation We" by Stefanie Olsen, CNET News.com, 22 January 2007