It was interesting to watch but the second half of the documentary like a domino or card house falling apart the whole concept of the movie. The documentary "The Anthrax Attacks" is about what happened after the September 11 attacks (September 11, 2001), but instead of showing us what happened, we see huge mistakes from FBI and people who has a lot of health problems. While you expecting continuation of the investigation, fairness towards post office workers, and some sort of answers, you will get a slap on your face from the government with statements like "Sorry but so many things is going on" or "We have done a great job" Well, kind of disappointing.
It reminded me about Dick Cheney (played by Christian Bale) words in movie "Vice" (2018) at the end of the movie, " I can feel your incriminations and your judgment, and I am fine with that. You want to be loved? Go be a movie star. The world is as you find it. You've gotta deal with that reality that there are monsters in this world. We saw 3,000 innocent people burned to death by those monsters, and yet you object when I refuse to kiss those monsters on the cheek and say "pretty please." You answer me this, what terrorist attack would you have let go forward so you wouldn't seem like a mean and nasty fella? I will not apologize for keeping your family safe. And I will not apologize for doing what needed to be done so that your loved ones could sleep peaceably at night. It has been my honor to be your servant. You chose me. And I did what you asked."
God bless America and may the victims of 9/11 rest in peace.