If by "legitimize internet censorship globally" you mean the US would set an example of censorship for other countries to follow, I guess that makes sense. Remember, Hillary Clinton took Google's side in criticizing China's internet censorship. China will go into full US-bashing mode when this bill gets passed, not to mention all those blackberry-censoring countries. I'm glad I live in neither country, but my government loves to follow the US's example so I'm concerned. Time to start routing my traffic through Sweden!