Because they know Bush will get blamed for it. Most people probably don't remember who was running the show then. If this story gets legs, watch for this: accounts in the media will ascribe blame to the "government" or the "administration"; generic terms that will fall back on the current president. I doubt will hear the words "Clinton", "Freeh" etc
the sheeple are stupid. but not stupid enough to not know the difference between the years 1999 and 2000, from 2001.