Recently Rupert Murdoch brought his son to the US ostensibly as the heir apparent to his global empire. But as Michael Wolff and others have pointed out, his departure may have had more to do with the growing body of evidence in the UK that allegations of newsroom misconduct may have been overseen by senior people in the company. Now Murdoch’s company News International has admitted it behaved badly and is promising to settle with anyone it damaged. It’s a bold public admission…