Terrorism
After the cold war ended, the collapse of the communist block and with tremendous growth in economy in U.S. Europe, Japan and Asia of the past 30 / 40 years, domestic terrorism was becoming less a threat to many societies. For a few years in the 90¡¯s, peace seems to be possible, only in recent years it seems to be out of control again. In recent years, there is a trend towards globalization. With the development of transportation, communication, the internet, and satellite technology, it is important for enterprises and organizations to co-ordinate and employ resources globally. Of course this greatly increase efficiency and brought wealth to many individuals, enterprises and countries.