In all fairness to the devoted Amercians working in one of these many 'Homeland Security' departments, I must salute them all in recognition of the fact that we have NOT (thank God) had another 9/11.
You're probably giving them too much credit. The fact there hasn't been another 9/11 is due not so much to anything the federal government has done, but rather blind stupid luck. We're 4 years down the road and we still have done virtually nothing about our porous borders. There is absolutely no excuse for this.