Organs Grown to Order

More than 100,000 people in the United States need an organ transplant, but demand always outpaces supply. An average of 20 people in the nation died every day in 2016 because organs were unavailable, and that was despite record annual donations of more than 33,000. Physicians have proposed many solutions to encourage organ donations, including payment. But scientists are looking elsewhere to ensure a better supply. Thanks to advances in genetic engineering, a new twist on using anima