As I have watched him do this research and development over those two decades, I recently asked him how it was going. He only response was the above and he would not discuss further that technology to protect me, my family and his family from any repercussions.
As I have come across this kind of activity before, I take the entire "stealing of intellectual property" concept as something that governments like to indulge in and like to accuse others of the "heinous" action while trying to appear as lily white innocents themselves.
YMMV, but as far as I am concerned China is just the new USA.