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In a phone call today, Obama and Medvedev agree to limit both sides to 1,550 warheads — a drop of 30 percent.<![CDATA[In a phone call today, Obama and Medvedev agree to limit both sides to 1,550 warheads -- a drop of 30 percent.New STARThttp://o.aolcdn.com/photo-hub/news_gallery/6/5/655184/1269617691007.JPEGGetty Images]]>

US, Russia Reach New Nuclear Arms Pact