Physics problem or engineering challenge? Wireless networking company LightSquared argues that, with some technical engineering work, its $14-billion plan to expand wireless broad-band to millions of consumers can work without disrupting the majority of the industry's global positioning systems.
But on Sept. 8, during a hearing in the House, major U.S. government agencies that rely on GPS disagreed, calling the company's plan a major physics problem that essentially would create too much signal noise in spectrum bands adjacent to sensitive GPS networks, causing widespread disruption.