Senior Fellow Steven Pifer, director of the Arms Control Initiative at Brookings, says that more attention needs to be paid to arms control in the 2012 U.S. presidential election, since it is an opportunity to make Americans safer and to advance American security. Since the U.S. and Russia signed the New START treaty in 2011, Pifer says that arms control implementation is going smoothly, but that there are still challenges, in particular with regard to missile defense and further reductions in warheads.