Commentary: maintaining the somatic/germ-line distinction: some ethical drawbacks.

Determinations of the ethical acceptability of genetic therapy have relied on several distinctions in attempts to separate ethically acceptable genetic therapy from those possible therapies that could lead to genetic modifications of future human beings. One distinction that has been proposed is that genetic modifications of human somatic cells is ethically acceptable but that germ-line genetics modifications would be ethically objectionable. This paper examines several serious difficulties which call into question the ethical relevance of a somatic/germ-line distinction.