For years, neighbors who lived near a factory in Louisville, Kentucky, complained amongst themselves and to local officials about a variety of strange smells coming from the plant, which produces colorings for food and drinks.
Some described it as an ammonia-like smell, while others said it was more like burnt sugar or burnt caramel. They worried a bit about living so close to the plant, but never expected what happened Tuesday, when an explosion killed two workers, and blew out windows and ripped pieces off the roofs of nearby homes..
“I’ve always thought about it, like this is unsafe — seems like — because there was al