If that is the standard of the Nuclear supply industry, is it any wonder there are accidents.
The floors are cluttered with cables and other junk, very few items have identity plates or tags.
Access space is cluttered and blocked.
If that was my workshop there would be a few folk fired on the spot.
Or is the whole setup a spoof.
That looks like a research reactor of some sort, or maybe a breeder reactor? The reactors I operated were all propulsion plants, and looked nothing liked this - everything was squared away and done in strict accordance to all electrical and mechanical codes. I've seen other US nuclear facilities and have seen a little workspace clutter in non-controlled area, but nothing like this. Everything had a place, was kept there when not needed, and was accounted for on a regular basis. Very much by the numbers, this nuclear energy business. (Otherwise, sad things like Fukushima Dai-ichi, Chernobyl and Three Mile Island occur, we lose good people, and we learn the hard way.)
Not really loving the mashup of what looks like documentary footage with clips from the movie "Watchmen". That just serves to needlessly sensationalize this whole business. Nuclear energy can be a very useful and abundant energy source once we de-politicize it to the point where it's economical to use. I'm not saying de-regulate it, just use some good old common sense and do what's needed without all the red tape that just makes bureaucrats wealthy at the expense of the taxpaying public.
I'll stop now. I'm somewhat less than detached about it.