I don't want the core issue of this tragedy to become a union debate. A union wouldn't have prevented that collapse. I don't blame the collapse entirely on the owners of the landfill, it's an industry wide problem. There are certain materials that make a landfill unstable. Those materials bring in a lot of money. There are no rules set in stone on how much you can take, or how to integrate that material into a landfill. The onus isn't even completely on the landfill. The producers of that material could be forced to change the consistency of the material, which would also be very expensive. Many landfills are currently sliding to a certain degree. Greentree is the first implosion of an entire cell I have heard of, and things were done there that compounded the problem, but the root cause of that collapse is a festering problem that gets worse every year. As more municipalities push to recycle and compost normal municipal solid waste, less MSW is available to mix with the special wastes to stabilize them. That's fine, recycling and composting are good things, but when the makeup of a waste stream changes that dramatically, steps need to be taken to ensure the safety of the operators. I want Greentree to be a warning sign to the industry, not just the owners. These landfills are designed to hold this waste forever, we are still learning what happens at the bottom of a pile that is 200 feet tall and 30 years old, and the current waste stream is far different than what it was then. The entire industry needs to take a deep breath and look at what we are doing to the sustainability of our landfills. Greentree should be a watershed moment