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 Serious Is the SEC Probe of Pre-IPO Share Sales?
58:10 - Former SEC Chairman Arthur Levitt and Second Market CEO Bill Siegel discuss the Wall Street Journal's report about an SEC investigation into the sale of pre-IPO tech shares. They speak with Bloomberg's Emily Chang on "Bloomberg West." Levitt is a board member at Bloomberg LP, the parent company of Bloomberg News. (Source: Bloomberg)
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