it isn't history dude, they only put it in the freezer for now, until these politicians find a better moment to put it back on the agenda. They probably won't call it sopa/pipa, but give it another name, but it will come back.
As long as those corrupt politicians are in office, there is always a chance it can come back. If you really want to be sure it is history, then you need to vote those criminals out of office. I don't care what political party they belong to, these folks belong in jail.
If those politicians are out of office and in jail, only then will you be able to say it is history.