A Most Terrible Dream

Last night I had a dream that was more disturbing than any I have ever had before, and hopefully ever again. It sat me bolt upright in bed, shaking. I couldn't close my eyes again, for the images kept repeating no matter how I tried. I don't know why I drempt this, or what it means. But it haunts my head.
The dream:
I was visiting what I took to be a family with college-aged kids. They were wealthy and seemed fairly normal; I think we were playing board games in their living room. I was a guest, and they were showing me around. They apparently ran an energy plant that also produced salt. It was apparently revolutionary technology. They seemed proud of their work, and volunteered to show me their plant. I visited it, and the plant was this long conveyor belt with large buckets welded onto it, that went almost straight down into the earth. And there were men in big leather gloves throwing small kids aged 2-6 into those buckets, shoving them on top of each other. And there were parents dropping them off there! Down the belt they would go, being sprayed with some flammable liquid, then shot with a flame gun, burning to death (it was this, or they were taken so deep into the earth that they were burned to death by the heat of the magma, I can't remember). And so they were killed, and the energy from their bodies burning was sold as electricity and the ashes somehow created salt. But there were these little kids, screaming in fear and pain, shoved into these buckets on top of each other, and burned. Some escaped and were just sort of laying around in various states of burned or burning and no one took notice. I just remember standing there in a shock as the buckets went down the belt full, and returned empty. I turned to see the family standing there smiling at their success. I want to say that I rebelled against them and killed every single adult that was there with me and saved all the kids I could, but I don't remember what happened next. I just keep seeing those faces.
I hope I can sleep tonight.