As headlines and photos pile up of the toxic sludge accident in Hungary, we're unfortunately reminded that it isn't unique. Toxic spills have a long and rich history in the United States and around the world, as mining companies, pesticide interests and other industries have cut safety corners with deadly, lingering results. In fact, it's alarming how often they happen, and how often the victims are forgotten.
If you learn one thing from this slideshow, let it be that unless we hold companies accountable, accidents like Hungary's toxic sludge spill will keep on happening. In fact, there are more accidents brewing than you might think.
Here's a look back at 10 toxic spills we hope never happen again.