Merrill Lynch swells ranks of fiduciary 401(k) advisers by more that 3,000

Merrill Lynch Wealth Management is charging into the fiduciary fray with lightning speed. Since March, when the wirehouse brokerage announced plans to transition its defined-contribution-plan business to a fiduciary model in response to the Labor Department's fiduciary rule, the number of its financial advisers allowed to service retirement plans as…