This week, President Obama is hosting a crucial Nuclear Security Summit in Washington.



With 23,000 nuclear weapons worldwide, experts are clear: we either eliminate all nuclear weapons or accept living in a world where virtually any country or terrorist group can get one.



Last year, over 115,000 of us helped secure a historic commitment by Russia and the US to reduce their nuclear arsenals by a third--a commitment affirmed in the new US-Russia treaty.



But only a massive surge of people power can persuade world leaders to take bolder steps to achieve a world free of nuclear weapons. We cannot miss this historic opportunity! Sign the declaration below, then spread the word -- the petition numbers will be announced at the summit: