David Cameron Joins Crowded 5G Bandwagon With Samsung, Taiwan and Others

British Prime Minister David Cameron delivers a speech next to German Chancellor Angela Merkel at the 2014 CeBIT technology Trade fair on March 10, 2014 in Hanover, Germany. CeBIT is the world's largest technology fair and this year's partner nation is Great Britain. Photographer: Nigel Treblin/Getty Images

The U.K. didn't get its first 4G network until last year, but Prime Minister David Cameron is already talking about 5G. He took to the stage at the CeBIT conference in Hanover, Germany, to announce plans to develop a 5G mobile-data network that can download a movie in less than a second .

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