A friend of ours sent me this very intredasting link which I didn't know existed. But since cross-posting is a no-no, I take the liberty to post the information which is obviously very pertinent in our discussion:

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Things like that remember me that google once did not have the capacity to exclude links from its systems, but because of pedophiles, they finally built that capacity. The next day the copyright industry was knocking at their door to take down content they previously couldn't because of the lack of technical capacity.

"Now Google don't have excuses." - I remember seeing that phrase in a New York magazine.

”Child pornography is great,” the speaker at the podium declared enthusiastically. ”It is great because politicians understand child pornography. By playing that card, we can get them to act, and start blocking sites. And once they have done that, we can get them to start blocking file sharing sites”. -- http://christianengstrom.wordpress.com/2010/04/27/ifpis-child-porn-strategy/