In a statement to the conference, the leaders of five major U.S.-based organizations urged prompt action to make disarmament a global enterprise.
Iran and six world powers extended talks on a comprehensive nuclear deal for a second time after failing to reach an agreement last month.
Negotiators for Iran and six world powers are focused on reaching a comprehensive nuclear deal by Nov. 24 and are not discussing extending the talks, officials said
The United States is deciding whether to attend a December conference in Vienna on the humanitarian impacts of nuclear weapons use.
The P5+1 and Iran are working hard to build upon their successful Nov. 2013 interim nuclear agreement, which has halted, and in some areas, rolled back Iran's nuclear program.
In an October 29 letter a group of more than two dozen leading nuclear policy experts and former U.S. government official sare urging the United States to participate in the next humanitarian impacts conference.
Iran and the P5+1 are working to negotiate a comprehensive agreement by Nov. 24 that ensures that Iran does not use its nuclear program to build nuclear weapons.
As negotiations on a comprehensive nuclear deal with Iran reach a critical phase this week in Vienna, experts speaking at the Arms Control Association's annual meeting on Oct. 20 will discuss the prospects for a nuclear deal with Iran.