Not everyone agrees
A couple of minutes in Google came up with this:
Researchers like Young believe stem cells will one day replace cells lost or damaged by devastating diseases such as Parkinson's or Alzheimer's, by kidney and heart disease, as well as by spinal cord and brain injuries.
From APP, referring to work at the New Jersey Stem Cell Institute.
Looks like a case of shoot first, think later. Or more likely, shoot first, shoot later, don't bother to think.