My friend,
You are right to criticize many of our pessimistic views, but I think you are neglecting to reflect on the integrated nature of censorship. Look at existing systems we have available and how they have been misused, and now we shouldn't be critical of giving them a new toy because it has been ideologically white washed into something easily digested?
Even if we are to trust our government, there are so many factions and so much bureaucracy that many times the left hand doesn't know what the right is doing. Who is to say that this technology will not be misused in the future? Why wait for the bud to blossom when you can pull it up from the roots?
Politicians are supposed to be the tools of the people, to give the government too much control is to offset the balance of power set aside for each party within the social contract and be counter productive to democracy and civil rights. What is more American than that?