At the very least, the Spectre AC-130U or F-18’s that were on ready at Sigonella Air base—Italy, just 480 miles away, could have been sent to destroy the mortar position firing on the annex (that a security officer had targeted by laser).
One reason they might have been afraid to send in air support or choppers is that Amb. Stevens found out that the 20,000 missing manpads were still in Benghazi.
obama was terrified of accidentally injuring a non-guilty libyan, so he let four americans die.
it’s just that simple.