Reconstruction of the Twin Towers does send a positive message to the people. It shows that America will rebuild and not let hardships get the best of it. It shows that America is strong, and will not let fear rule them. It shows that America is not afraid of terrorists.
It is wrong that the Twin Towers were not reconstructed a long time ago. The New York skyline was forever changed when the towers went down. Not rebuilding them is a way of telling the terrorists that they had won. Rebuilding the towers would have been a way to tell them they did not destroy us.