Men, do you feel threatened by artificial sperm...?

It sounds kind of ridiculous to me (calling it "artificial") - it still comes from someone - it's not really artificial just coming from a different cell type - it's not like it was synthesized from chemicals. It's potentially a great thing for infertile men, however, I think there needs to be a lot of study about possible health implications - whenever we mix anything unnatural with biology there are usually unexpected results and usually they are bad.