The above video will give you some idea of what CISPA is (if you missed it). They have been trying to destroy the internet for the last few years. They seem to be getting closer each time. CISPA has passed in the House. They did so ahead of schedule. Bastards.
We need to let everyone in the Senate know that if they pass this they will never be elected to office again. President Obama did say that he would veto it but I am not sure if I trust him. He has opposed a few things at first and then signed them in to law.
Go here for more info on what you can do: http://act.demandprogress.org/letter/cispa_passes?akid=1331.402372.totQAD&rd=1&t=2