Remarkable advancements have been made in "neutering" pig organs so they no longer provoke a powerful immune response in humans, and striking progress has been made in extending survival times for xenografts…
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...significant technical and ethical hurdles remain before growing organs in pigs is likely to be feasible. The science is still in its infancy, and researchers have yet to figure out how to make human cells co-exist in a stable fashion with animal tissues.
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…only the most cursory ethical reflection is needed to grasp the moral problem with creating human offspring in laboratories, using an admixture of cow components, in order to scientifically cannibalize them.
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