[can't edit original comment for some reason, so follow up:] ...A safe, low side-effect, potentially reversible male birth-control pill would be a godsend for m

[can't edit original comment for some reason, so follow up:] ...A safe, low side-effect, potentially reversible male birth-control pill would be a godsend for men who want to control their reproductive potential. I have heard that RISUG )(http://en.wikipedia.org/wiki/Reversible_inhibition_of_sperm_under_guidance http://en.wikipedia.org/wiki/Reversible_inhibition_of_sperm_...) has shown promise, so may be something to watch out for.