furthermore the working group will also provide a superb opportunity for the world community to address security concern during the disarmament process, including such issues as verification transparency and irreversibility and to consider measure to overcome them. It will also be an appropriate forum to commence a serious discussion of the risk and benefit of acheiving a world free of nuclear wespon and the legal framework needed to achieve it. We should take this valuable opportunity to depend the world's understanding of the challenges ahead in realizing this great and historic goal