President Obama:
...We've taken important steps forward to increase nuclear security and to stop the spread of nuclear weapons.
This starts with the reduction of our own nuclear arsenals. As the world's two leading nuclear powers, the United States and Russia must lead by example, and that's what we're doing here today. We have signed a Joint Understanding for a follow-on treaty to the START agreement that will reduce our nuclear warheads and delivery systems by up to a third from our current treaty limitations. This legally binding treaty will be completed this year.
We've also agreed on a joint statement on nuclear security cooperation that will help us achieve the goal of securing all vulnerable nuclear materials within four years -- progress that we can build upon later this week at the G8 summit. Together, these are important steps forward in implementing the agenda that I laid out in Prague.
