If Rep. James Clyburn, D-S.C., really thinks that censorship is the answer to the threat of political violence, perhaps he ought to consider that Egypt has just restored Internet and Blackberry services because of how ineffective it was in preventing protests. From Electronista:

The service had been shut down both as an attempt by Egyptian President Hosni Mubarak to silence criticism but also as an immediate attempt to frustrate large-scale protests that took place on Friday. Its decision to backtrack was both a reflection of the ineffectiveness of the ban and of economic realities, since the country would face major economic repercussions from a loss of Internet and phone service.

It didn't work for a long established autocracy. What makes Clyburn think it would work in America?

(Updated at 8:26pm to reflect that Clyburn is not a senator, but a congressman, and has no ability to filibuster, thank my lucky stars.)