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US regulators are squaring up to companies like Google and Facebook over online privacy. And they are warning about the dangers of downloading applications on your smartphone. Lesley Curwen talks to America's privacy cop, David Vladeck, Director of the Bureau of Consumer Protection at the Federal Trade Commission.

Plus Mary Yoko Brannen, Professor of Strategy & Management at INSEAD business school describes how 'hybrid' workers, who have more than one nationality and language have special skills useful in global business.

And Lucy Kellaway of the Financial Times tests 'sweat-working' to see if sweating buckets with your business contacts brings them closer.

(Image: Apps on a smartphone. Credit: PA)