Pretty gross and disturbing silpery slope argument for genetic enhancement:
Men on a slippery slide in future hermaphrodite world
July 11, 2008
"I argue that, if these are our goals, we may do well to move towards a 'post-sex' humanity. Until we have the technology to produce genuine hermaphrodites, the most efficient way to do this is to use sex selection technology to ensure that only girl children are born. Girl babies therefore have a significantly more 'open' future than boy babies," he said.