SOPA is powered by the capital of 'old media'.
These are folk who want to maintain an old, outmoded and redundant status quo to the detriment of all of us.
Napoleonic justice (guilty till proven innocent) was flawed in its day, and there can be no reason to bring it back today for the pipedream of the 'old media' tycoons that the genie can be put back in the bottle.
This TED talk about SOPA is creative commons, unaltered non-profit media.
You are free to copy and mirror it as much as you want, as long as its non profit and unaltered.