I wasn't here during the Bush years, but I have a hard time believing that the 10-15 attacks on our embassies got the same scrutiny, or the thousands of dead soldiers because of our misguided Iraq and Afghanistan policies, or the in general decades of mucking around in the ME, deposing leaders we don't like, propping up those we do, which has created all this blowback. I read this stuff on Benghazi and it appears like the only mistakes we've made in the ME were by Hillary, Rice and Obama.
Even on the security thing - you're aware that the Ambassador turned down extra security offered by the military? We don't know why, but it was offered. And of course in hindsight the security was poorly handled, because there was an attack and people died, including the ambassador, who for some reason traveled to an insecure location on 9/11 without additional backup. All you've done is look at the conclusion, and without any actual knowledge of the decision making by dozens of officials at CIA, State, and the military, observed the failure and then concluded that this failure is somehow uniquely "disgusting" among the hundreds/thousands of other failures leading to deaths of U.S. military or civilians on that region.