Invisible River of Gold Is Wave of Wireless Future

Feb. 15 (Bloomberg) -- Spectrum is one of the most important parts of your digital life that you probably know very little about. So, what is it? And why are wireless carriers so obsessed with it? Bloomberg Businessweek's Sam Grobart explains.
How China Plans to Tackle Pollution Problem
11:07 - Bloomberg New Energy Finance's Justin Wu discusses China's pollution problem with Bloomberg's Angie Lau on "First Up." (Source: Bloomberg)
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