My first reaction to your question is: "Of course a clone has a neshama
like any other human being!" Even though this comes from the heart and
not from halachic reasoning, I still believe that it is simply morally
wrong to consider a clone to be less than a full human. A clone is
certainly no different physiologically or psychologically. If clones were
considered spiritually inferior, then some might feel justified in killing
a clone for the "spare parts," which is just reprehensible.
In regards to the point that the neshamot of human beings are evident in
their speaking ability, I am very puzzled as to why Rabbi Menken did not
use this as an argument that clones do have neshamot.
Daniel Jacob Pearson <firstname.lastname@example.org>