Tech: A new kind of gene-edited pig could solve America's organ transplant problem

Crispr gene-edited pig organs may soon be in a hospital near you. The latest advance in Crispr technology is a new kind of virus-free gene-edited pig. Scientists are hot on the hunt to figure out a way to transplant pig organs into humans. But a growing concern is retroviruses in pig cells that could infect humans. It's unclear how high, or low, the risk for retrovirus infection poses for