Yahya Allababidi asked: Who can forget the many tragic events in our history? Assassinations of presidents such as John F. Kennedy, the dreadful events of Pearl Harbor, or the unexpected and disappointing disasters of space crafts. These are all events that will be etched in our memory for life. And let's not forget about the recently occurring events of September 11. This terrible act was done by terrorists who flew two commercial planes directly into the twin towers of the World Trade Center. The chaos did not stop there! The pentagon was also attacked via a third hijacked plane. Lastly, a fourth hijacked plane went down in Pennsylvania. This unimaginable national disaster caused the US government to immediately ground all types of planes throughout the US. Although years have passed since then, [+]