2022 Fall Colloquium Series; F. von Hippel, Ph.D., Princeton University
The continuing risk of nuclear war and how physicists, acting as citizen-scientists, can help reduce it
With the end of the Cold War and the disintegration of the Soviet Union,
 the public, including most physicists, and Congress, assumed, the 
danger of a nuclear war had ended as well.  Unfortunately, that has not 
been the case. Indeed, the danger of accidental nuclear war may be 
increasing. US and Russian strategic missiles remain in a 
launch-on-warning posture in an era when hackers have penetrated some of
 our supposedly most secure computer systems and China appears to be 
moving toward a similar posture.  Both Russia and the United States have
 committed to hugely costly programs to replace their nuclear weapons 
with new systems designed to maintain that status quo for the remainder 
of the century. Meanwhile, an offense-defense nuclear arms race is 
developing between the US and China, which is building up the number of 
its nuclear weapons that can reach the US as the US increases the number
 of its ballistic missile interceptors – nominally to defend against 
North Korea. In the past, independent physicists have played leading 
roles in informing Congress and the world about the dangers and offering
 ideas for how to reduce them – both unilaterally and through agreements
 with our adversaries. The American Physical Society has supported the 
Physicists Coalition for Nuclear Threat Reduction during its first two 
years to help renew the engagement of physicists and other physical 
scientists and engineers with Congress and the public on nuclear-weapon 
issues. Following the colloquium, there will be a discussion of 
opportunities to contribute to this effort.
Our colloquium is on every Wednesday 4-5PM US central time. You can see the talk schedule at 
https://www.baylor.edu/physics/colloquia. The streaming will start a little before each colloquium talk starts.