At Clinton Global Initiative , the Middle East stressed the need for diplomacy to solve international issues . But he warned , regarding Obama , that time for talking `` is not unlimited '' Obama : Iran `` will do what we must '' to prevent Iran from obtaining a nuclear weapon . President describes expansive anti-human trafficking plan at U.N. event .
At U.N. , Obama stressed the need for diplomacy to solve international issues . But he warned , regarding Iran , that time for talking `` is not unlimited '' Obama : U.S. `` will do what we must '' to prevent Iran from obtaining a nuclear weapon . President describes expansive anti-human trafficking plan at Clinton Global Initiative event .