As an individual, you are certainly within your right to give forgiveness. But you cannot offer forgivness in the name of this country or the names of those injured or dead. It is up to them to offer the forgiveness and up to the terrorists to offer an appology. (But you live in a dream world if you expect either to occur.) Your son, and soon mine may have to defend our way of life, and our ability to worship in the religion of our choice. (I would not expect a choice if Osama is the victor.)
Rights do not come from government but exist. I would still have a choice-- and the responsibility that comes with my choice.