We must never re& our efforts to arouse in the people of the worki, and especially in their governments, an awareness of the unprecedented dkaster which they are absolutely certain to bring on themselves unless there k a fundamental change in their attitudes toward one another as well as in their concept of the future. The unleashedpower of the atom has changed everything except our way of thinking.Albert Einstein (1, p. 3 j ccording to an increasing number of health A professionals, the drift toward nuclear catastrophe of which Einstein spoke is becoming more and more imminent, posing the greatest public health problem in human history. A primary reason for this concern is a new and more dangerous phase of the nuclear arms race, which substantially increases the risk of nuclear war. A new generation of technology has created nuclear weapons accurate enough for first strike attack on military targets. This increased accuracy has allowed a shift in strategy from preventing war by mutually assured destruction, to waging nuclear war by destroying the other side's forces in a first strike. This nuclear war fighting strategy assumes that nuclear war can be won, that a strike against military targets can be limited without expanding to a full scale nuclear exchange and that a nuclear war can be survived. Moreover, first strike weapons such as the Pershing I1 missiles planned for Europe will be able to reach Moscow within ten minutes, perhaps forcing computerized launch on warning by the 8 1984 by The Regents of the IJniversity of California Soviet Union and increasing the risk of accidental nuclear war ( 2 ) .As Mobius editor Lucy Ann Geiselman notes in her Editorial, Einstein also spoke of the power of individual action, the comfort of the "alive and undismayed" (3). With public statements about winning nuclear war in the late 1970's, many health professionals have become alarmed about these assumptions of survivability and the increasing risk of nuclear war. These health workers have joined with other concerned citizens in the United States, Europe and around the world to demand, and to help create, the changes in thinking by which this threat can be lessened and nuclear weapons controlled. The message o f this movement is that "survival is everybody's business" and that the issue of nuclear weapons is the most crucial issue of our time, transcending partisan politics and other differences between people. In health care, health professionals have stated concern in medicine, public health, nursing, psychiatry, psychology, and other mental health disciplines, social work, health education and the allied health professions.Einstein's call for new ways of thinking is reflected throughout movement activities, and is also congruent with social science theory concerning how such movements create change (4,5,6). Defining a set of ideas on which to base action has been seen as an important part of the mechanisms of social movements. Social movements document the need for change, the failings of the current state of affairs; d...