[FreedomCalls]

Unless the genetic “hybrids” develop some neat little crossbred virus that will jump the line between pigs and Simians to humans. Then we could get something like a huge and incurable influenza outbreak that wipes out billions.

Wow. Tin-foil hattery of the first degree. You don't see it at such an extreme level like that very often outside of the chem-trail people. Congratulations.

[IslandJeff]

I believe we already occasionally transplant tissue from other species. Still, the concern is certainly warranted, particularly with endocrinal molecules. Maybe overstated, but still...

Since the human embryonic lines are (thankfully) limited and unsuccessful, I don’t think it’s too large an inference to be somewhat skeptical. Still, any hope is still hope, particularly to loved ones watching one succumb to the disease.