Terms discussed here include people, places, agencies, technology, jargon and clichés used in the aftermath of the attack on the United States. The glossary is organized by topics: terrorism, war, geopolitics, religion, homeland security, disaster recovery and miscellaneous. In some cases, the glossary notes alternative spellings of Arabic and other non-English words. Others may have alternative spellings not noted here. Highlighted links will open in a new window, taking you to sites offering more information on selected topics.