How close are we to cloning humans?
This is a very timely question, Collins. Just this week, some
scientists reported the cloning of human embryos. These embryos
were not allowed to develop beyond the 32-cell stage, however.
These experiments demonstrate that cloning of humans is possible
now. This research is has generated a lot of controversy for
obvious reasons. Many scientists and other concerned citizens are
calling for a moratorium on this type of research until there
has been a public debate on the complex ethical issues that arise
from this technology.
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Update: June 2012