Or Canna you can read this
At about 9:40 p.m. local time on Sept. 11, a mob of Libyans attacked a building housing U.S. State Department personnel. At 10:20 p.m. Americans arrived from a CIA annex located 1.2 miles away, to help the besieged Americans. At 11:15 p.m. they fled with survivors back to the secret outpost.
Armed Libyans
followed them and attacked the annex with rockets and small arms from around midnight to 1:00 a.m., when there was a lull in the fighting.
Glen Doherty, a former Navy SEAL and CIA security contractor, was with a team of
Joint Special Operations Command military operators and CIA agents in Tripoli at the time of the attack. When they received word of the assault on the mission, Doherty and six others
bribed the pilots of small jet with $30,000 cash for a ride to Benghazi.
At about 5:15 a.m., right after Doherty's group arrived, the attackers began shooting mortars at the annex, leading to the death of Doherty and fellow former Navy SEAL and CIA contractor Tyrone Woods.
At 6 a.m. Libyan forces from the military intelligence service arrived and subsequently took more than 30 Americans —
only seven of whom were from the State Department — to the Benghazi airport.
So the CIA's response to go to the mission where Ambassador Christopher Stevens was located, after
being held back for 20 minutes, saved American lives but also ended up exposing the annex.
And according to Paula Broadwell, the mistress of David Petraeus when he was CIA director, the CIA may have
provided an impetus for the attack by
holding prisoners: "Now I don't know if a lot of you heard this, but the CIA annex 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."
Read more:
http://www.businessinsider.com/the-secret-cia-mission-in-benghazi-2013-8#ixzz2ff1PaA7h