As an American, I was always under the impression we were the puritans when it comes to pornography. How much popular support does this have over there? I'm also surprised this is something the European Parliament has the power to enact.
People tend not to care about details of governship that only marginally effect their lives, but this is going to have a potentially huge effect.
Frankly though, I doubt it will pass -- anybody who votes for this risk alienating voters who normally wouldn't care, and there aren't enough proponents to make up for it.
I remain under the impression that this is somewhat unusual and unique to Iceland and America's puritan status isn't really threatened.