However, it has the insidious effect of isolating them just when communication technology promises to make traditional international barriers obsolete. Applied to the development of the internationalization of the DNS system, it's easy to see there is danger as well as vast opportunity. Let's talk about the dangers first. Technically, people using the Internet can communicate because computers can communicate. If the computers cannot communicate, the people can't talk.
Legal issues arise because they expect to be able to talk.
Market issues arise because when they cannot talk, they cannot participate in each other's economies. You can send mail to me because your computer and mine both understand how to ask a common name service where to send the message. When the name servers stop understanding each other, those simple capabilities break down. For you, I don't exist. This may not be a problem for you, but if I am trying to make my content available to you, to exchange mail with you or to offer you a service, it is a severe problem for me.