I answered this right here on FreeRepublic some time after the Benghazi incident when stories of the private e-mail server began to make their way into the media reports about the incident.
U.S. foreign policy -- and even military and intelligence assets -- have been sold to corporate and foreign interests for years. The U.S. military and the CIA have been functioning as mercenaries for anyone who is willing to pay U.S. government officials for their services. This is why every major U.S. military campaign and covert intelligence operation in the last 25+ years has been carried out for the benefit of: (1) real estate investment partners of the Bush family, and (2) donors to the Clinton Foundation.
I hope you're strong enough to handle the loss of whatever delusional sense of patriotism you may have had before reading this.
I’m pretty sure that in addition, the CF was making money from gunrunning - selling illegal arms to the highest bidder. I’m also pretty sure that that’s what Benghazi was all about at the core of it.