I think I've figured out your problem. You live in Las Vegas, where land is generally cheap and plentiful. Ground Zero occupies an enormous space on a very tiny island. Devoting the entire space to a memorial is an idiotic suggestion. Thankfully, very few of the families of WTC victims agree with you. Your next dumb plan will involve closing down the outer rings of the Pentagon, I guess.
I was born and raised about a mile from WTC in downtown Manhattan, and lived there for 33+ years. Whatever you figured out, it was wrong.
My suggestion isn't idiotic. In fact, if I was inspired to make the criticism personal I'd be tempted to call your flawed figuring about my problem as pretty compelling evidence of your idiocy, but thankfully I'm just not that kind of guy.
I suppose Central Park is a big waste of space, too.
That you for your contributions to the average IQ here on FR. It's valued. Oh yes, your insights speak volumes.
Back to the slide rule for more figuring for you, I suppose. Thanks for playing.