The bother many people. Some people with strong Christian beliefs have been very outspoken against stem cell research. They argue that a single embryonic stem cell is the most basic form fo human life. It is like ending the life of a human being. Due to this controversial ethical issue, in 2001 th U.S. government banned giving federal research funding to scientists conduction embryonic stem cell research. If scientists can find another way to get stem cell (other than by killing the embryos), they might be able to cure many of the diseases today.