about the 9/11 incident what major changes had taken place in America and had these changes been beneficical or non benefical???

Question

In the last 5 years, some of the major changes have been:
*preemptive war in Iraq
*thousands of lives lost in Iraq
*billions of dollars spent there -- with very little to show for these expenses
*loss of some American freedoms -- such as wire tapping citizens without court orders and searches at airports and government buildings
*increased suspicions of Muslims and Arabs