There’s obviously something very sketchy about his past with the Bill Ayers and Ayers parents, the SS registration card, the need to forge digital BC’s and fight paper delivery to courts, the dates and numbers out of sequence, etc.
And during the asault in Benghazi he betrayed many CIA operatives. These are not people to be trifled with. Traitors are not appreciated by some of them and most of the military. They have long memories and do not make threats.