I was aware of the captive(s) at the time of the attack, but I assumed that they were taken in as they were the attackers.
When I heard PB's speech, I got the impression they were prisoners that were being held well before the attack took place and were the reason for the attack its self.
Gack!! I'm confused!
Thanks, Ernest!
http://www.freerepublic.com/focus/f-news/2961245/posts
Broadwell told a Denver audience in October: “Now I don’t know if a lot of you heard this, but the CIA annex [to the consulate] had taken a couple of Libyan militia members prisoner and they think that the attack on the consulate was an effort to try to get these prisoners back.”
I read that the attack may have been two-phased; the consulate for Stevens and later the annex for the prisoners.