To future conquering civilizations in galaxies far far away . . . don't worry about polluting the air, our smokestacks have shot *****-bombs into the clouds for centuries, mixing rain drops with the black grime of industrialization, transforming our children's tears into cesspools of sulfuric acid and ddt. We've also drained the bayous and swamps and between you and me don't even bother landing in Africa there isn't suitable drinking water for miles, you see. You can thank years of colonization for that. In fact, you may not want to land on Mondays, Tuesdays, or Thursdays in LA either- on those days the air quality index is 175 and far too unhealthy for any biological organism to survive. But at least you won't die of malnutrition you've got decisions: McDonald's or Burger King choose cholesterol and diabetes are your shock troops. Send them in immediately, there won't be much resistance we've got these things call lazy boys and daytime t.v which have enslaved the population and decreased the distance between fully functioning human beings and mindless apes. Don't worry about bringing weapons we've got those too we've perfected the art of blowing each other away there's not much for you to do. we destroy cities with fire from the sky and our mushroom clouds rise at least ten miles high. And god can't see, there's too much smoke in his eyes and our radiated children die with radiated sighs. While we are on the topic don't worry about us spreading propaganda we've lost the ability to communicate. We've learned books turn a peculiar dark yellow when lighted and burned. And forget erasing history, we've done that too. Our subjugation of native peoples is masked as 'patriotism' under the red, white, and blue.
But don't get me wrong, I tell you all of this not to dissuade, please come and attack, please come and invade. Here, I'll even turn on the lights . . .