I've been on a disaster documentary kick for about a year now, so I've developed a bit of discernment in the genre. While disasters are always compelling, the documentaries that recount them are often tediously repetitive because the ads have been cut but the edits that make the ad-breaks possible have not. Happily this one seems not to have assumed the viewer is so brain-dead they can't remember what happened a few minutes ago. Having watched it through with interest, I couldn't resist poking the numpty nukeheads in the comments. Have a skip down the thread for it, for my comment is a fine one, I assure you.