I drive myself nuts. I get ideas in my head, and have to follow them. That’s why I work with my hands for a living.
Look at this image of the ten story Russian 9/11 Memorial. I can’t tell if this is a rendering or actual picture, but it’s close enough. We are told this portrays a torn city, and a teardrop within it, symbolizing shared grief over the hole torn in our psyche on 9/11.
What I would like suggest–and this is merely a possibility, for which no suitable verification is even remotely likely to happen–is that this could also be seen as a symbolic rape, where the building is seen as feminine–the hole is roughly in the shape of a vagina–and the teardrop as sperm. The aircraft were thrust into the buildings.
Here are images of teardrops: http://www.google.com/search?q=teardrop+shapes&hl=en&sa=G&prmd=imvns&tbm=isch&tbo=u&source=univ&ei=SueBTtGNGoSatwf30szoAQ&ved=0CDQQsAQ&biw=1024&bih=675
Which one does the memorial more closely resemble? I don’t like this idea, but pass it along because it cannot, in my view, be dismissed out of hand.