3 or 4 in a short time is unlikely to be a coincidence. i would not be suprised if it was found that some extremists deliberaly tried to derail these trains, especially considering that there is a far right presence in the areas where trains derailed, so naturally i would suspect them, considering they also copied putin by blowing up power stations when its freezing outside. but, then, also, noteworthy that every derailment is somehow used to poop on capitalism. even a socialist state would still transport hazardous materials by rail so, i don't know if that is really fair to blame capitalism. it seems like both extremes see this as a win, considering the danger posed, an enclosed covered rail would at least be protected from something natural like logs, branches, and corroded rails, if not from deliberate sabotage by terrorists or extremists.