SF Short Story - Ethical/Moral

[dlvl_02]

I have a high school teacher who is looking for short stories that "predict" future technology and hold a ethical or moral element to them. He is interested in older stories that become reality, but not committed to it. I really like "Dial D for Frankenstien" by Arthur C. Clarke and "The Veldt" by Ray Bradbury. H.G. Wells has stories but I think they may go over students heads to start out with. I need to read a few of Asimov's stories, but haven't had a chance yet. Does anyone have any great ideas for more?

Thanks,