Flight is inherently a risky venture, carried out in a hostile environment at great speed. Realistically and regrettably, a commitment to aviation safety can achieve no more than 'as few accidents as possible'. Moreover, the tragic events of 11 September 2001 have conclusively demonstrated that aviation safety goes beyond accident prevention from a technical point of view and extends to more profound political, strategic and legal dimensions. Accordingly, aviation safety requires a multidisciplinary approach: technical, economic, managerial, and legal.