Good arguments for eugenics?

What are the best arguments in favor of performing eugenics?

Convince me.

Anonymous2013-05-19T16:42:07Z

manual improvement of the human genome can be defended by the fact that medical costs would be lowered, people would be more intelligent, more physically fit, and better in general.

Eric H2013-05-19T19:32:52Z

There aren't any.