OK, I don't mean to undermine this Frontline episode. I'll just say it's missing very important info but there are some really good things covered for sure. I say it's a must see. In the end dig up and read/view everything you can and the complete picture emerges along with the failures of each of these works. Yes, view all rightwing and leftwing info, I am actually confident that if you approach all the info without bias that the intellectual mind minus bias will come out with some amazing reality.
I will say that in this first episode, GW got a free ride with the blame for everything placed on everyone but him--that's in part, bullshit...
But in my opinion you should watch this, watch/read everything left right middle that you can until the behind the scenes events and circumstances come together in a way as to portray a true image. This work contains valuable info that won't really fit into a depiction of reality unless you are sincere about digging into all of it--if I would beg one thing in my life of all of you, it is that you do that.
For some it will be a challenge, you refuse to see what the right says, you refuse to see what the left says, don't be like that, it's amazing the truth that emerges once you spend the time to listen to every single item on the issue.