The US Federal Bureau of Investigation (FBI) is examining allegations that Rupert Murdoch's News Corp. may have tried to hack into the phone records of victims of the Sept. 11, 2001 attacks on the United States, the agency said Thursday. “We're looking into allegations raised by the letter by Peter King yesterday,” said an FBI source, asking not to be identified. This developed as Rupert Murdoch and his son James first refused, then agreed Thursday to appear before UK lawmakers investigating phone hacking and police bribery. Meanwhile, a former News of the World senior executive, who was arrested Thursday, was paid £24,000 as an adviser by the police force now investigating him, Scotland Yard said. Neil Wallis, 60, former executive editor and deputy editor of the now-closed tabloid, was arrested at his London home “on suspicion of conspiring to intercept communications”, the Metropolitan Police said.