I'm about a quarter of the way into "Muzzled" by Juan Williams, the NPR political correspondent and Fox News contributor who was fired by NPR for comments he made on The O'Reilly Factor that air passengers clad in Muslim garb make him nervous while flying.
So far, it's a bunch of characters for whom it's tough to feel any sympathy. The NPR senior management involved, the news director and CEO, pretty clearly were interested in advancing their own personal agendas at nearly any cost. I also don't doubt they had issues with Williams drawing supplemental income from Fox. Both have separated from NPR in the time since Williams was fired.
As for Williams, despite his protestations to the contrary, I'm not yet convinced that his role at Fox is anything more than a shill. I think he knows that the main reason he draws a check from Fox is so that Fox News senior management can maintain their "Fair and Balanced" claims without being struck by lightning or having their pants spontaneously combust.
That being said, Williams is a very knowledgeable guy. Some day, I'll dig into his biography of Thurgood Marshall and/or his chronicle of the civil rights movement.