Robo-advisers shrug off U.S. fiduciary rule hubbub

By Anna Irrera and Elizabeth Dilts NEW YORK (Reuters) - As century-old Wall Street brokerages have agonized over the fate of a major U.S. regulation on retirement advice, younger Silicon Valley counterparts have coolly shrugged their shoulders. At issue is when and how the federal government will implement the so-called "fiduciary rule" handed down by the U.S. Labor Department last year.