Senators Jon Kyl, John McCain, and Joe Lieberman sent a letter [2] to National Security Advisor James Jones expressing concern that the Russians are continuing to seek limits on U.S. missile defenses in the context of the soon-to-be-completed START follow-on negotiations, according to a Nukes of Hazard analysis by the Center for Arms Control and Nonproliferation, a Ploughshares Fund grantee.
Links
[1] https://ploughshares.org/file/1561
[2] http://www.foreignpolicy.com/files/fp_uploaded_images/20100217_letter_to_jones_start_fo_missile_defense.pdf
[3] http://thecable.foreignpolicy.com/posts/2010/02/17/stage_set_for_new_fight_over_missile_defense
[4] http://nukesofhazardblog.com/story/2010/2/18/15759/0634