Woodie Guthrie or Phil Ochs

Because no one did anything about it. Not one person there called him on it. He just got to be a misogynistic piece of shit and believe he was completely right to do so, in spite of everything that's blatantly and fundamentally wrong with it.

Per the article, whether the communications were, in fact, privileged is in dispute. The spokesperson said that there is an explicit disclaimer regarding the prison's email system (and since when do inmates have access to email?). And how does Maxwell's attorney know why an employee was terminated?