At that point, it’s too late. We need to give up a little security if we want to keep the smidgen of freedom we have left.
Since the cat is largely out of the bag at this point, I would like to see a public weighing of the NSA's domestic activities. It may be that the public will decide to accept a form of bulk collection that still provides strong 4th Amendment protections. I actually think that could be done.
At this point, I am more concerned about the obvious politicization of the IRS and Justice Dept. than the possible politicization of the NSA. I think the former have great power over most people's lives and those violations are happening now.