Already, three U.S. lawmakers on Wednesday urged the Department of Justice and the Securities and Exchange Commission to look into whether News Corp broke a U.S. law banning payment of bribes to foreign officials.
And some media pundits, including CourtTV founder Steve Brill, have raised questions over whether News Corp's U.S. broadcast license could be revoked,
given that federal communications law requires owners of TV stations to be "of good character."
News Corp owns the Fox television stations and cable network Fox News.
Analysts say it's too early to tell if there will be serious damage to Murdoch's U.S. business, but these calls raise the specter that his smeared reputation in Britain could have ramifications stateside.
"It wouldn't surprise me at all if others call for hearings and investigations, and perhaps they may even be held. There's going to be a lot of activity around this issue," said Jeffrey Silva, analyst with Medley Global Advisors.
Analysis: Murdoch's newspaper crisis causes jitters in U.S. - Yahoo! News