According to the NYT, scientists now have good data from 63% of the Neanderthal genome. Dr. George Church from Harvard Medical school thinks that a living Neanderthal could be manufactured with $30 million dollars.
Ethically speaking, what would be wrong about this? Perhaps the Neanderthal could be allowed to grow up in human society, and maybe even thrive socially, if it is able to speak. Of course, some small problems might arise, but they would probably lead to widespread hilarity for the rest of us.