Will we ever be able to clone humans?
Almost certainly. The process that was used to clone Dolly the sheep would probably work on humans if we tried it now. In fact, a private biotech company called Advanced Cell Technology actually did this in 1998. They took a nucleus from a human leg cell and injected into a cow egg cell that had been stripped of its own nucleus. The resulting human-cow hybrid embryo grew in a test tube for 12 days before it was destroyed. Reproductive cloning research is now illegal in most countries. This will slow progress in the field, but probably not halt it altogether.