Nothing really new here.
I blame Clinton for many of his offices choices regarding terrorism investigations, such as the notion referred to commonly as the "Gorelick Wall".
But I don't blame him on this. To do so is simply to do so in hindsight. And nothing inherently suggests that sans Bin Laden something akin to 9/11, or even 9/11 itself, couldn't have still came to pass. Regardless of my thoughts on any President I respect greatly the immense decisions they are faced with where lives are literally hanging in the balance, and I'm not one to play Monday Morning quarterback on something like this.