Obama's Press Conference About Stem Cells

I personally believe that the use of stem cells is a good thing because it can save many people. Scientists are saying that if they do some research on stem cells they can find a cure for cancer and other diseases. If scientists were able to that, wouldn't that just be amazing? Many people argue that taking stem cells from women is a bad thing to do because you're killing potential babies. Women have a lot of embryos containing a lot stem cells, so why is it so bad to take some?