Facebook got you down? Don't even think about targeting the Zuck for physical retribution. A source familiar with the matter tells Radar the Facebook CEO added new bodyguards to his entourage recently. "He's been getting lots of death threats of late," the source said.

Radar has a list of suspects including the ConnectU founders and disappointed advertisers. But we know better. A muscular entourage is just about the only way to stop a bear hug from Big Daddy Ballmer.

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