Impossible? Around the Globe by Solar Power Alone

Feb. 25 (Bloomberg) -- Solar Impulse's Andre Borschberg and Bertrand Piccard give us some insight into the world of solar powered flight. They speak with Pimm Fox on Bloomberg Television's "Taking Stock." (Source: Bloomberg)
BlackBerry Boosting Security, Encryption Investment: CEO
54:50 - March 3 -- BlackBerry Ltd. Chief Executive Officer John Chen talks about the company's new Leap smartphone and business strategy. He speaks with Brad Stone at the Mobile World Congress in Barcelona on Bloomberg Television's "Surveillance."
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