Who is Wendi Deng? Cable viewers may know her as the flash of pink who smacked down Rupert Murdoch's shaving cream pie-wielding attacker at today's U.K. Parliament hearing on the News Corp. phone hacking scandal. In reality, Wendi Deng is a formidable, if at times shadowy, member of her husband's media empire in her own right.

Murdoch, along with his son James and his protegee Rebekah Brooks, went before Parliament today to answer questions about the scandal that continues to bring down News Corp. executives. When Rupert Murdoch was wrapping up his testimony, a protester lurched toward him, intending to throw a plate of shaving cream into his face. But while the plate was still aloft, Deng jumped to her feet, slapped the attacker, and then picked up the pie plate to try to hit the protester--who operates a Twitter account under the name Jonnie Marbles--with his own weapon, according to the Telegraph's James Kirkup. At the tail end of the Murdochs' testimony, one committee member said, "Mr. Murdoch, your wife has a very good left hook.

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