Martin Sorrell, WPP CEO, says Facebook is one of the most important brand mechanisms. Will he buy Facebook stock? "I will buy it for my grand-kids," he tells CNBC's "Squawk Box."
Martin Sorrell, WPP CEO, says Facebook is one of the most important brand mechanisms. Will he buy Facebook stock? "I will buy it for my grand-kids," he tells CNBC's "Squawk Box."