The background here is a Fox News report that CIA security personnel at a compound near the Benghazi consulate wanted to help the Ambassador but were repeatedly refused permission. The CIA responded to suggestions that it ordered the stand-down. The Atlantic reports:
. . . the CIA says it never instructed any of its personnel from helping the four Americans who died on Sept. 11. In an e-mailed statement, CIA spokeswoman Jennifer Youngblood says "no one at any level in the CIA" told operatives at a local CIA annex in Benghazi not to help Amb. Stevens[.]As pointed out in the story, however, the CIA has only denied it made any decisions--it has not denied that other agencies or officials may have issued the orders.