is not Middle-Eastern conflict, green energy, or Sarah Palin getting elected to office. It's overpopulation. Dr. David Katz wrote a decent article that hopefully will get some discussions started.
I have a feeling though that by the time we get around to frankly discussing the issue, the Duggans will have bred out the rest of us.
Seriously though, while it's easy to poke fun or ridicule a family that thinks it is their divine right to bring 19 or 20 kids into this world, I'm not very fond of the thought of having starving people with flies buzzing on their eyelids gasping their last breath because someone half the world away likes big families.
There are issues of resource allocation, of course, but then you can bring up the fact that America is the land of conspicuous consumption, where we each use as much resources as 45 Ethiopians. So the Duggans have a village indeed, burning up the same amount of this planet's finite resources as 990 (22x45) villagers.
The issue is very frustrating to me, because you can look at any specie that overpopulates, and you can clearly see that their demise is both quick and painful. Not the future I want for my kids. Both of them.