If you don't like government officials, that's one thing. Those who do the investigations are not exactly officials. They are average people like us, who do a professional job. You don't think that an appointed government official transcribes flight data recorders, do you?
Incidenttally, I was a federal employee for 4-years after leaving the US Air Force. All of the high-level government employess that I met did their jobs with honor. Apparantly, you need to ask me what I know about government employees before you jump to conclusions. What do you think?
My point precisely. They are just average people who do their jobs. Some of them are incompetent, some of them have their own agendas. As do private sector employees. I would suggest to you, however, that it is much more difficult for a public sector employee to be fired from a government job for incompetence or or due to poor job performance than it is for a private sector employee to be terminated for the same reasons.