Am I the only one who thinks the NSA should be doing something to ensure that this doesn't happen again, as in precautions against the gathering of data by an i

Am I the only one who thinks the NSA should be doing something to ensure that this doesn't happen again, as in precautions against the gathering of data by an individual? While Snowden did have proper justifications and reasons for the exposure, the fact that he was able to is still not a good thing for the NSA isn't it? Someone else who might not have America's interest could do the same thing theoretically which is bad.