Nuclear Weapons Resources

The ballistic missile defense system that the United States will deploy later this year will have no demonstrated defensive capability and will be ineffective against a real attack by long-range ballistic missiles.

Although no comprehensive treaty about space weapons is in effect, a legal framework does exist.

UCS is working for a safer world by eliminating risks of nuclear arsenals and nuclear terrorism, improving nuclear plant safety, preventing the deployment of anti-satellite and space-based weapons, and enhancing international dialogue on security issues.

UCS works to eliminate the risks posed by nuclear arsenals and nuclear terrorism, improve nuclear power plant safety, prevent the deployment of anti-satellite and space-based weapons, and enhance international dialogue on security issues.

David Wright and Lisbeth Gronlund, paper published in Science and Global Security Journal

George N. Lewis and Lisbeth Gronlund, UCS Working Paper

Set forth by the Union of Concerned Scientists in August 1977. By the year's end, over 12,000 scientists and engineers had endorsed the Declaration.

Despite problems, the system has continued to operate at partial capability.

Nuclear Posture Review

Lisbeth Gronlund, David Wright, and Stephen Young, UCS Working Paper: Assessment: Ground-Based Midcourse Missile Defense System