(a) Great care should be taken to ensure that exceptions and derogations that might have been justified because of an act of terrorism meet strict time limits and do not become perpetual features of national law or action.
应该十分谨慎地确保由于恐怖主义行动而有理由实施的例外和克减存在严格的时间限制，不会形成国内法或行动的长期特点。