“9·11”事件之后,打击恐怖主义犯罪成为国际社会共同关注的重大议题,联合国为此而出台了一系列法律文件;长期争论不休的“恐怖主义定义问题”似乎也被区域性多边反恐协定———《上海公约》一举突破;不少国际犯罪被划归恐怖主义范畴,反恐的国际合作一时成为压倒一切的任务,国 After the “September 11” incident, cracking down on terrorism crimes has become a major issue of common concern to the international community. The United Nations has issued a series of legal documents for this purpose. The long-debated issue of “terrorism definition” seems to have been affected by the regional multilateral anti-terrorism agreement --- The “Shanghai Convention” broke through in one fell swoop. Many international crimes have been classified as terrorism. International cooperation in counter-terrorism has suddenly become an overwhelming task.