How many people were fired for telling unwanted truths during the Iraq War?

I am reading several older books from the mid-2000s. It just got me thinking about how many people in Government were fired for speaking the truth about the Iraq War?

General Shinseki was fired after providing unpopularly high troop estimates. I know there were plenty more, but honestly, my brain is pudding today after dealing with some stuff at work. Not to mention, I am sure the knowledgeable people here are aware of numerous people that aren't mentioned in any of my books. Any names you guess remember, please feel free to post them here.