`` It has not just been talk , it has been action , '' Obama says of the nuclear summit . Obama : " I am confident that we can reach an agreement with Iran within a matter of weeks and months rather than years or even decades. Ukraine gave up its highly enriched uranium in 2010 .
`` It has not just been talk , it has been action , '' Obama says of the nuclear summit . Obama : The U.S. is doing its part , too , with installation of more radiation detection equipment . Ukraine gave up its highly enriched uranium in 2010 .