It is a process through which a stem cell is removed from an embryo, and the embryo is sacrificed. The stem cell can be used for a variety of things. It can be placed in a heart that has been damaged from a heart attack, and help make the heart stronger. It is believed that the study and use of embryonic stem cells will lead to treatments for Parkinson's, ALS, and diabetes.

The argument many people make about this issue is that it is morally wrong. Many Catholics feel that it is not right to kill the embryos because they are human beings. Scientists believe it's not their part to judge whether it's morally right or wrong. Their job is to make the cures and this is one way to do it. Many people think it is...