Invented by American computer scientists during the 1970s, the Internet has been embraced around the globe. During the network’s first three decades, most Internet traffic flowed through the United States. In many cases, data sent between two locations within a given country also passed through the United States.
Engineers who help run the Internet said that it would have been impossible for the United States to maintain its hegemony (统治权) over the long run because of the very nature of the Internet; it has no central point of control.
And now, the balance of power is shifting. Data is increasingly flowing around the United States, which may have intelce--and conceivably military--consequences.
American intelce officials have warned about this shift. "Because of the nature of global telecommunications, we are playing with a tremendous home-field advantage, and we need to exploit that edge," Michael V. Hayden, the director of the Central Intelce Agency, testified before the Senate Judiciary Committee in 2006. "We also need to protect that edge, and we need to protect those who provide it to us."
Indeed, Internet industry executives and government officials have acknowledged that Internet traffic passing through the switching equipment of companies based in the United States has proved a distinct advantage for American intelce agencies. In December 2005, The New York Times reported that the National Security Agency had established a program with the cooperation of American telecommunications firms that included the interception of foreign Internet communications.
Some Internet technologists and privacy advocates say those actions and other government policies may be hastening the shift in Canadian and European traffic away from the United States.
"Since passage of the Patriot Act, many companies based outside of the United States have been reluctant to store information in the U. S. ", said Marc Rotenberg, executive director of the Electronic Privacy Information Center in Washington. "There is an ongoing concern that U. S. intelce agencies will gather this information without legal process. There is particular sensitivity about access to financial information as well as communications and Internet traffic that goes through U.S. switches. "
But economics also plays a role. Almost all nations see data networks as essential to economic development. "It’s no different than any other infrastructure that a country needs," said K · C · Claffy, a research scientist at the Cooperative Association for Internet Data ysis in San Diego. "You wouldn’t want someone owning your roads either."
Indeed, more countries are becoming aware of how their dependence on other countries for their Internet traffic makes them vulnerable. Because of tariffs, pricing anomalies and even corporate cultures, Internet providers will often not exchange data with their local competitors. They prefer instead to send and receive traffic with larger international Internet service providers.
This leads to odd routing arrangements, referred to as tromboning, in which traffic between two cites in one country will flow through other nations. In January, when a cable was cut in the Mediterranean, Egyptian Internet traffic was nearly paralyzed because it was not being shared by local I. S. P. ’s but instead was routed through European operators.
The issue was driven home this month when hackers attacked and immobilized several Georgian government Web sites during the country’s fighting with Russia. Most of Georgia’s access to the global network flowed through Russia and Turkey. A third route through an undersea cable linking Georgia to Bulgaria is scheduled for completion in September.
Ms. Claffy said that the shift away from the United States was not limited to developing countries. The Japanese "are on a rampage(横冲直撞) to build out across India and China so they have alternative routes and so they don’t have to route through the U. S."
Andrew M. Odlyzko, a professor at the University of Minnesota who tracks the growth of the global Internet, added, "We discovered the Internet, but we couldn’t keep it a secret." While the United States carried 70 percent of the world’s Internet traffic a decade ago, he estimates that portion has fallen to about 25 percent.
Internet technologists say that the global data network that was once a competitive advantage for the United States is now increasingly outside the control of American companies. They decided not to invest in lower-cost optical fiber lines, which have rapidly become a commodity business.
That lack of investment mirrors a pattern that has taken place elsewhere in the high-technology industry, from semiconductors to personal computers.
The odd routing arrangements of the Egyptian Internet traffic is caused by ______.