We didn't look at the Milgram experiment, but two classes ago we did look at the ethics of experimentation on humans in general -- I assigned an overview of the ethical issues involved by Lawrence De Castro in the Blackwell companion to Bioethics (http://www.amazon.com/Companion-Bioethics-Blackwell-Companions-Philosophy/dp/063123019X). Since the structure of the course involves coming back to the opening questions from the first couple weeks, I will definitely be able to bring in Milgram.

The second question you mention is a CLASSIC one, especially in core, required ethics classes. The students are pretty brutally skeptical about ethical motivation sometimes. Thanks for your suggestion!