As a consequence of the regrettable events of 11 September 2001, international recognition of the new gravity of this new challenge led to efforts on the part of the organs of the United Nations to confront this dangerous phenomenon.
由于2001年9月11日发生的令人遗憾事件，国际上认识到这个新挑战的严重性，这促使联合国各机关进行努力，面对这个危险现象。