You are correct it was a human error and could have been made by anyone.  However if I go to buy a cabinet that I was told or was marked $10.00 I am only going to pay $10.00, not $100.00.  Besides that, if I or most citizens were to make that big of an error or an error that would cost that much to correct via a special session I would no longer have my job.  Was anyone accountable for this human drafting error?