He should have aired it publicly for the world to see. The Clintons can operate as they have for the last 30 years because nobody will call them on their illegal bullshit. They do everything behind closed doors and deal with people who are known for their discretion. If Bernie was being threatened, why not make it public? It would surely have gotten massive amounts of media attention and would have jumpstarted a congressional investigation. Why was the secret service allowing a campaign to threaten the life of a presidential candidate? That in itself creates a kind of protection for him and his family. Hillary would not act if she thought that she would get caught and be presumed guilty. She's stupid, but she's not that stupid.

That's the main reason why I think that the speculation about threats of violence is overblown. The facts simply don't line up. Did they threaten him? Probably. The Democrats likely said they would make him a non-presence in the Senate and do everything they could in the future to destroy his career if he didn't give up. But I also think that Bernie got something out of this. Judging by his actions, the deal was to endorse, fully support, and throw his weight behind the establishment that cheated him in exchange for something. What exactly we don't quite know yet, aside from a few platform concessions. But Bernie almost certainly made some kind of deal, and his own behavior, which runs counter to much of his image as honest and plainspoken, along with his campaign's rhetoric, is one of the reasons why people are becoming more skeptical about what he is doing. The fact that he's done more to support Hillary than Tim Canova since the primary ended is indicative of that. I don't think that you can really fault anyone for feeling that way.