Smooth sailing seen ahead for Kerry as U.S. State Dept pick

* Senate aides do not foresee late objections to Obama pick * Syria, Iran among concerns for senators * If confirmed he will divest about 100 investments WASHINGTON, Jan 24 (Reuters) - At least one of PresidentBarack Obama's national security picks is likely to win approvaleasily from the U.S. Senate: his nominee for Secretary of State,John Kerry, whose confirmation hearing will be conducted by