Which is interesting, although there's a lot they haven't determined. But. Hypothetical question here:
Imagine they discover there is a genetic difference between homosexuals and heterosexuals, which can be tested for at birth and is highly accurate. (Double-blind here - as in, you do the test, then lock it up in a steel vault and tell nobody including the kid's parents. Thirty years later you pull out the piece of paper and, hey, it matches.)
What would this mean to you? How would it affect you?
(And before I get a swarm of people who haven't read what I just said, yes, I realize this isn't what the news article says at least. I just find this an interesting thought experiment :P)