During the Cold War, one of the few issues on which the United States and the Soviet Union agreed, was that other states should not have nuclear weapons. The likelihood that one of them would use those weapons – or transfer them to a regime or group that would was too great.

This was called the principle of non-proliferation. It was regarded as an established norm of international behavior, expressed most explicitly in the 1968 Treaty on the Non-Proliferation of Nuclear Weapons -- better known as the Non-Proliferation Treaty or NPT.

Is it still in force or relevant or even meaningful? What is being done to prevent the acquisition of nuclear weapons – as well as chemical and biological weapons – by regimes hostile to the United States and its allies?

FDD has a new Nonproliferation and Biodefense Program attempting to answer such questions and provide policy options.

Chairing the program is Ambassador Jackie Wolcott, former U.S. representative to the United Nations in Vienna and the U.S. representative to the International Atomic Energy Agency.

Charles Kupperman, who served in senior positions in both the Reagan and Trump administrations, is a member of the program’s board of advisors.

They join Foreign Podicy host Cliff May to talk about nuclear, chemical, and biological weapons.