I think the author was trying to explain the risks they are taking and saying that it's only a matter of time until we start to see disasters similar to the one

I think the author was trying to explain the risks they are taking and saying that it's only a matter of time until we start to see disasters similar to the one in 2004 but 100 times worse. https://cen.acs.org/articles/82/i27/TRAIN-DERAILS-CHLORINE-LEAKED.html#:~:text=Two%20freight%20trains%20collided%20early,and%20killed%20two%20more%20people https://cen.acs.org/articles/82/i27/TRAIN-DERAILS-CHLORINE-L....