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...country road into an eight-lane superhighway for Internet data traffic, including 3-D video, university lectures and feature films such as Harry Potter and the Half-Blood Prince and The Twilight Saga: New Moon. "Video is the big driver behind all this," says analyst Akshay Sharma of technology-research company Gartner Inc., noting that voice and texting will soon be overtaken by richer multimedia content and applications. (See TIME's tech buyer's guide...
...body of research is far from conclusive. In 1995, Lai co-wrote a study showing that a single two-hour exposure of RF radiation - at levels considered safe by U.S. standards - produced the sort of genetic damage in rats' brain cells that can lead to cancer. Though subsequent researchers - often funded in part by the wireless industry - failed to replicate Lai's results, a 2004 European Union - funded study reported similar findings...
...Dariusz Leszczynski, a research professor at Finland's Radiation and Nuclear Safety Authority in Helsinki, has done studies indicating that RF radiation may create a stress reaction in the cells that line blood vessels, leading to a dangerous breach in the blood-brain barrier. "Mobile-phone radiation may be able to indirectly hurt cells, perhaps by interfering with their ability to repair normal DNA damage," he says. "Given the scientific uncertainty, it's premature to say the use of cell phones is safe...
Meanwhile, a start-up, Pong Research, is selling cell-phone cases that significantly reduce radiation exposure by channeling waves away from the head. Says Alfred Wong, Pong's chief scientist and a professor emeritus of physics at UCLA: "I think it's best to avoid as much of the risk as possible until the verdict...
Karabell is the president of River Twice Research and author of Superfusion: How China and America Became One Economy...