THE DEFENITION OF THE TERROR IS ANY ATTACKS OR OPERATIONS THAT AIMING CIVIALIANS PEOPLE OR CITIZENS IN OTHER MEANING THE PEOPLE WHO DOES NOT REALATED TO THE MILATERY SECTION.SO IN MY BLEAVE THE ATTAKS HAPPENED IN NEWYORK (WTC) WAS PERFECTLY A TERROR INCLUDING THE 4 HIJACKED PLANES.BUT THE ATTAK AGAINST THE BENTAGON AS I THINK WAS THE ONE WHICH WRIGHT BECUASE HAS TARGETED THE HEAD OF THE AMERCAN MILATERY ESTEBLESHMENT IRRESPECTIVE THE TOOL OF ATTACK WHICH WAS THE HIJACKED PLANE WITH ITS CIVILAINS PASSENGERS . THE SAME THING IN PALESTEN ,THE ISLAMIC MOVEMENTS USUALY DO ITS OPERATION AGAINST THE CITIZENS AND THEREFORE THEY DON NOT GET ANY SUPPORT FROM THE WORLD .