and now bbc world news. america signs the new start treaty on nuclear weapons, but does it make the world a safer place? we will have the view from moscow. the u.s. senate backs the treaty, now russia must ratify it. this is really important, not just for american national security or for the russian american relationships, but this is also important for global stability. welcome to gmt. i m george alagiah with a world of news and opinion. also on the program, south korea stage as one of its largest military exercises. where will all the sound and fury leave prospect of talks with the north? uk s scientists revealed secrets of the it is midday in london, early evening in delhi, and 7:00 a.m. in washington, where the obama administration is celebrating the senate s ratification of the new start treaty. the hard-fought victory is a welcome christmas present for a president who has had a rough year. the russian parliament is almost certain to ratify the treaty when p