The definition of domestic and global terrorism

  1. How has the definition of domestic and global terrorism changed from inception to today among various agencies?
  2. How has the definition of domestic and global terrorism changed among public and private organizations and government agencies?
  3. Why do so many variations of the definition of domestic and global terrorism exist?
  4. Is a universal definition of terrorism possible? Why, or why not? What are the pros and cons of establishing a universal definition for the world?
  5. Why did the definition of domestic and global terrorism change among all these agencies after the events of 9/11?