Traffic was brought to a crawl by some inadvertent giant-screen hardcore pornography in Moscow recently. Video is here. It was, of course, blamed on hackers, because nobody in their right mind would want to watch 3000 square feet of tits bouncing in the sky. It also happened at midnight, which means that only people in search of tits were likely to have seen it - so I don't see a downside in any of this. Authorities, however, do, and are investigating.