> If [men] knew they could get a reliable contraceptive that could also be reversed I think it would be appealing to them.

You think? If it was truly reversible, I'd sign all three of my sons up for it, and myself. The risk to males from a pregnancy (at least in the United States) is insanely high, and all the power rests with women (to carry or not).

Anything that gives men control over when and who to have children with, I'm 100% in favor of.