And there is the rub: adoption, medically assisted procreation.

CNN: Gay rights: How U.S. leads the way

As for medically assisted procreation, it is another problem: As of today, it is simply forbidden unless the couple is heterosexual and married or able to prove they has lived together for at least two years.

CNN: Gay rights: How U.S. leads the way

One reason, besides the obvious fear of a culture war with the conservatives about sacred family values, maybe the fact that the government already pays four attempts of medically assisted procreation to heterosexual couples and doesn't wish to have to extend this costly favor to gays, nor, more importantly, does it want to change at any price the national moral doctrine.

CNN: Gay rights: How U.S. leads the way