SOPA and PIPA may have started out as anti-Wikileaks measures (and just FYI, Wikileaks are NOT Wikipedia, two different sites, completely).
But anymore I doubt Wikileaks is competent enough to be that big a threat by itself. And the truth of it is, local police departments (and especially big-city ones) are already militarized quite enough to _Flatten_ uprisings like your Occupy mess. And likewise the RIAA already _has_ every tool they need to sue every online citizen into prison, bankruptcy and ruin as it is.
So I don't really think it's about Wikileaks _now_, or that it ever _was_ about copyright enforcement.
I think this is a "let's kill YouTube and video torrent sites before they kill off mainstream television" act. Really, that's what this boils down to--killing off YouTube so things like Occupy get zero media exposure, and killing off torrents entirely, so that the RIAA can go back to bullying little girls and dead grandmas.
And how do you do that? Well, you make the IP compliance requirements for uploading _any_ video to the internet, at all, so dictatorial that if you whistle a tune, cover a song, or quote someone, it becomes an instant felony without so much as a trial. You make it so that if someone's TV, radio or cellphone goes off randomly, by accident, in an uploaded video, it _doesn't matter_ if it was accidental or even without the uploader's consent--it becomes an instant felony.
And that word "Felony" matters because here in the States we _DO_ punish felons twice: They get their VOTE taken away, usually forever. So this is as much a "one internet connection, NO VOTE" law as it is anything.
Oh, and it's an Ex Post Facto Law besides, at least as far as YouTube goes, because _every video present_ will be judged according to this new law. All of them, including the _millions_ that were previously considered legal, and that YouTube itself went out of its way to _keep legal_ under the previous law. So basically SOPA and PIPA would kill off YouTube entirely because YouTube would be considered "aiding and abetting criminals" retroactively, with each video that _was legal_ before the fact under Fair Use.
So I see this as more of a "protect mainstream television" act because it's being replaced by the internet, which _usually_ has a less greedy business model that _usually_ interferes with Freedom of Speech a lot less. Chinese sites entirely notwithstanding.
Oh, and so it keeps things like Wikileaks and Occupy from happening? Bonus for the wingnut crowd. And it makes things more heavily controlled and censored than what's in China? Ditto, because we all know how sold-out a bunch of whores Congress really are, don't we?