That's the question asked by Ira Socol on the "SpeEdChange" blog.
It's a good read! http://speedchange.blogspot.com/2008/07/left-behind.html Check out the comments too.
I found the "SpeEdChange" blog because a former student of mine sent me a link to another of Ira's posts, this one on cell phones in the classroom: http://speedchange.blogspot.com/2007/12/dont-hang-up-on-your-students-futures.html
I've just added this terrific blogger to my aggregator!