I agree with Jen and Mullet
Yes, it was a sad thing that happened that day, but if we do nothing and just leave that soace empty then the terrorists will have won
I think the idea of a memorial park is great and Yes the towers should be rebuilt! It will not only give the families and friends of the victims a place to go to remember their loved ones but it will also be a place for all to go to reflect on this for years to come.