In my opinion, when Alexis Ohanian goes before Congress, this should be something that is brought up. Just yesterday (http://hackerne.ws/item?id=3451934) we saw how Congress doesn't understand why this law would be so difficult to enforce and how broad it really is. It's something that they can actually relate to, as I imagine they all have websites of their own and having them block within the United States would be catastrophic for their future election plans.