couple suggestions -
1) hit the library, I've read 3 good books recently on this topic, one was by Andy Kessler "rebooting your doctor" or something, another was called "survival of the sickest". I think the 3rd was titled "the future of healthcared" All were written by MDs within the past 2 yrs.
2) wikipedia was good for ethical issues, do a search on "medical ethics", I found info on stem cell, eugenics, etc. there.