11.   A high-speed data network also creates the possibility of controlling airplanes from the ground in emergencies.

12.   A newly discovered security flaw apparently will make it easier than ever for malicious hackers to eavesdrop on wireless data networks.

13.   Advantis currently manages data networks for businesses and offers services such as electronic data interchange, which links companies and their suppliers.

14.   Businesses can use the system as an inexpensive data network.

15.   But anecdotal evidence suggests that the iMac is also finding a place in many businesses, as an inexpensive computer that connects easily to corporate data networks.

16.   But Lucent has not been a major factor in the market for equipment that forms the vertebrae of data networks.

17.   But new systems are allowing data networks to handle voice calls as well, by translating the sound into digital data.

18.   But push systems swamped both individual users and corporate data networks with useless information.

19.   But that same power for innovation can be redirected upon the data network that is simultaneously remarkably resilient as well as extremely vulnerable.

20.   But the punch Sprint Spectrum dodged landed squarely on Northern Telecom Ltd., the massive Canadian company that makes equipment for global telephone and data networks.