ormer U.K. Prime Minister Gordon Brown repeatedly attacked Rupert Murdoch during a media ethics inquiry Monday in Britain, accusing the media mogul of lying under oath. Murdoch had previously testified that Brown called him in 2009 to "declare war" on his company, claiming that the Sun's hostile coverage of the war in Afghanistan was undermining the military's efforts. Brown said the call never took place. He also criticized Murdoch's son James for his "breathtaking arrogance" in pushing to deregulate the British media industry, and slammed the Sun for its "sensationalized" coverage of the war in Afghanistan and for its decision reveal that Brown's son has cystic fibrosis.