DoubleTree Adds Social Media Tool, Greenleaf Says

DoubleTree Adds Social Media Tool, Greenleaf Says Play

May 6 (Bloomberg) -- John Greenleaf, global head of Hilton Worldwide's DoubleTree by Hilton, talks about the company's global expansion plans and social-media strategy. Greenleaf speaks with Betty Liu on Bloomberg Television's "In the Loop." (Source: Bloomberg)

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