Terrorist attack
Terrorist attack - An event or act is a terrorist attack within the meaning of the Act, at 42 U.S.C. 3796c-1, only if the Attorney General determines that -
(1) There is a reasonable indication that the event or act was (or would be or would have been, with respect to a priori prevention or investigation efforts) an act of domestic or international terrorism within the meaning of the criminal terrorism laws, at 18 U.S.C. 2331; and
(2) The event or act (or the circumstances of death or injury) was of such extraordinary or cataclysmic character as to make particularized factual findings impossible, impractical, unnecessary, or unduly burdensome.