Oh Boy I'm first to say, BUSH'S FAULT!
We need to establish a rating system to catalog the level of absurdity and degree of non-nexus in "Bush's fault' claims. Then we can just sort of sit in the virtual audience holding up cards with the appropriate rating. Based on a 1 to 10 index, this one'd go right up there with Sean Penn blaming him for Penn's smoking problem. I'd say, somewhere around a 9.8.
Come to think of it, we could call it the "Bush's Fault 'Dex". That'll provide us with an easy to remember three letter abbreviation.