Cities across the world, inspired by the leadership of  the Mayors for Peace 2020 Vision campaign, are calling on world leaders to abolish nuclear weapons completely by the year 2020. The vehicle for this campaign is the Hiroshima-Nagasaki Protocol, signed by 762 cities fom 49 countries. There are, however, only a little over 20 U.S. cities currently signed on. Please encourage your mayor to include your city in the campaign. The fundamental message of the Protocol is that if the world is to disarm, then the discriminatory nature of the nuclear Non-Proliferation Treaty - that, among other things, exempts nuclear weapons signatories from the prohibition or the acquisition of nuclear weapons - cannot persist.