Until a couple of weeks ago, that was obvious to everyone but Goldman, a firm famous for both prescience and arrogance. In a display of both, Blankfein began to raise his personal- security threat level early in the financial crisis. He keeps a summer home near the Hamptons, where unrestricted public access would put him at risk if the angry mobs rose up and marched to the East End of Long Island.
If I was a target of public anger I would arm up too. (granted that I am a pistol owner)

Arming Goldman With Pistols Against Public: Alice Schroeder - Bloomberg.com