British Prime Minister David Cameron is wielding his power scepter over allegations that James Murdoch lied during his parliamentary hearing Tuesday. Trouble arose when Murdoch denied ever seeing an email sent in 2008 that implied News of the World's chief correspondent was aware of the phone hacking. But two former execs later came forward to say they had personally shown young Murdoch the email, claiming he was "mistaken" in his testimony. "Clearly James Murdoch has got questions to answer in Parliament, and I’m sure that he will do that,” Cameron said Friday. In a statement, Murdoch stood by his testimony.