I tend to agree. It seems to me that there is an important difference
between (1) using cloning techniques to grow only specific tissues (by
turning on certain "control genes" during nuclear implantation); and (2)
using cloning techniques to grow an embryo with certain "control genes"
turned off to halt development at some point. The first procedure still
bothers me somewhat, but it seems like it could be considered separately
from the second. We must remember, also, that there are likely to be a
number of other procedures proposed which fall at various points between
those two scenarios.
I would hope that any proposed technique would be *thoroughly* tested on
other primates before it was even considered for humans.