For the purpose of this endorsement an act of terrorism means an act including but not limited to the use of force or violence and/or the threat thereof, of any person or group(s) of persons, whether acting alone or on behalf of or in connection with any organization(s) or government(s), committed for political, religious! ideological, or ethnic purposes or reasons including the intention to influence any government and/or to put the public, or any section of the public! in fear.