They are amazing things. They are all of the horror of war, all of the death, destruction and carnage of human conflict, all contained in a metal casing, where a single press of a button can do what used to take months of effort, thousands of tons of resources, manpower, planning, sweat and carnage. Something we've cleverly reduced to the size of a suitcase, that in a single horrible flash, can simply erase the lives of tens to hundreds of thousands of fellow people. Incredibly destructive, so destructive that they almost "clean away" their own destructiveness. They are simultaneously awe inspiring, terrifying, beautiful and horrifically ugly. The ultimate (so far) example of how humanity is driven to harnessing the inherent powers of nature and adapting the world around us into thing, an amazingly small and not that scary looking thing, that demonstrates our desire, ease and comfort with the concept of "destroying the other". Destruction that is so incredible in scale, that it dramatically and elegantly shows both how clever and ingenious we are as a species, and just how short sighted and dangerous we are as well.