expansion of al qaeda in libya. necessity knew that, believed it to be true and according to our source had a good bead on one person at least the area in which one person was operating. within 24 hours. also we confirmed today that while we continue to hear from the administration that the investigation is ongoing and they can't talk about details because they are going to get from the fbi, not a single fbi agent has stepped food inside benghazi since this attack, that's 16 days. so that investigation will likely take a long time since they haven't been inside. megyn: do we know what the explanation for that last piece of it is? >> reporter: the fbi is saying they are concerned about the security of their agents which is understandable. about it also raises questions. if you can't get an fbi