This is,.....unsettling to say the least. I won't pretend to understand the subject of stem cells, though I understand that it may lead to a cure for diseases like the one that killed my father. But creating human/animal hybrid embryos is frightening. True they were destroyed with no intention of bringing them to term,.........yet. But the possiblities are clear, and what if some deranged tyrant considered creating semi-human soldiers, or slaves. Are we ready for mutiple species of human to walk the earth? Before mankind travels very far down that road, maybe a little reading is in order, I suggest Mary Shelly.........

"It was a strong effort of the spirit of good; but it was ineffectual. Destiny was too potent, and her immutable laws had decreed my utter and terrible destruction."----------Mary Shelly, Frankenstein.