I think of David Reimer almost every day, as I observe my children (boy 7, girl 3). Anyone who doesn't know that sex characteristics are part of our fundamental makeup is, at best, an utter fool. The only possible excuse is that one has not had children to raise, but such a person is far too naive to be credible as a "researcher" in this field.
David Reimer was the victim of a terrible accident as a child, but this accident was compounded by ignorance masquerading as enlightenment, borne of a fantasy view of human nature.
(steely)
Cold comfort to the Reimers, but David's tragedy has led to reforms of the whole 'sex-reasignment' procedures. It is highly unlikely that any other little boy will ever go through the hell David went through.