Will you critique my poem please?

I believe you refer to the 1st atomic explosion, back in the 40s. Fortunately the technologically advanced countries do not try out nuclear weapons anymore. The attention should be given to the ones that are emerging as possessors of nuclear weaponry, nowadays. They try them as they please, without asking of anyone. Mostly in the oceans, polluting the sea-water organisms for thousands of years from now! This is threatening, not only because of the radioactive emission everywhere, but also of the unattained "nuclear science" their scientists develop.