I agree entirely that it's unforgivable. I think it's so unforgivable that they are almost afraid of a sort of revolution if the truth comes out now.
If the truth had come out at the time, people would have been calm but would have demanded action - like war against Iraq. Clinton didn't want that.
So many years have passed and so many organizations have messed up now that people would be outraged. FBI messed up. Congress messed up. Now Bush, by not addressing this immediately in his administration, messed up.