The worst part is that SOPA doesn't actually stop piracy, which is its purpose. It only blocks DNS, so if they blocked pirate bay, you couldn't use the URL, instead you'd need the ip and it would work just fine.
With that in mind, this bill comes with many, many bad things that don't have much to do with it's purpose, which is to stop piracy(a purpose I support).
I'm glad congress didn't vote on this yesterday, and will instead revise it further. Let's hope the next version will actually do something about piracy, and not inhibit freedom.