Started ok, but is now dragging on longer than a Boris Johnson premiership.
At most, this could have been condensed into 4 episodes, which would have increased the pace and tension of what is basically a very interesting and relevant topic. Instead, its been padded out with pointless and irrelevant side issues that add absolutely nothing...presumably to satisfy the demands of advertisers. Even the actors are bored...Simon Pegg looks like he'd rather be sticking needles in his eyes than be mixed up with this mess.
Last nights episode reminded me of my biology lessons at school...after what seemed like 3 hours, I looked at the clock to discover it was only 10 minutes in.