Agree to cut back on the number of nuclear warheads that we have. and also second factor is to get assurances from the administration that notwithstanding this treaty, which i think most people in the senate want to support, that they will continue to go ahead with the plan that president obama announced last year, to build a missile defense system in europe. >> they did issue a side letter even after signing the treaty. as you know, back when the s.t.a.r.t. treaty was signed, there were side letters, each side saying they're going to continue to pursue missile defense. you of course as a form...