Not, "Bush's fault". Many are to blame for this situation. The "border situation" began long before President Bush was inaugurated, and it will remain long after he has left his "post". From what I've learned by studying this issue, there are many WALLS (the kind we DON'T need) in the way of border security. Although it would be nice and convenient to blame just one man, it would also be a perfect example of "ignorance". :)
President Bush is the ONE MAN who has the authority to secure OUR BORDERS and he REFUSES to do so. You can call him ignorant if you wish but I think his VISION of the NEW WORLD ORDER is taking PRIORITY over his OATH OF OFFICE to DEFEND AMERICAN SOIL.