Obama promotes nuclear-free world

April 05, 2009

U.S. President Barack Obama says his country will take concrete steps to free the world of nuclear weapons U.S. President Barack Obama set out his vision for a world free of nuclear weapons on Sunday. Visiting the Czech capital on a one-week trip marking his presidential debut on the world stage, Obama said the U.S. would continue developing anti-missile defences as long as an Iranian nuclear threat remained. He also called on Pyongyang to abandon its efforts to acquire nuclear weapons, after its rocket launch.