I stumbled across this while looking for something else. From USA Today
It has a pretty good outline of the Panetta and Dempsey testimony. There testimony would seem to indicate, that the first support that got to the site was 23 hours after the attack began. Panetta said they "made adjustments" since then. I sure hope so!
This was the first time I heard that the "battle" was two 20-minute skirmishes 6 hours apart. The former SEALS died in the 2nd skirmish ... so if these geniuses could have gotten somebody there within 4 hours, those people might be alive today. Good thing these fellas were not in charge of D-Day.