“Get under your desks. The missiles are coming.” “The President has been shot!” “The National Guard has killed four students at Kent State.” “The river is burning!” These are my searing teenage and early adult memories. My formative years took place in the 1960s, when society was seemingly coming apart at the seams, with riots over the Vietnam War, riots over racial issues, and the assassinations of President John F. Kennedy, Robert Kennedy, and Martin Luther King, Jr. The Cold War was in full swing and there was great fear that the United States and the (former) Soviet Union would annihilate the world with a nuclear holocaust. In addition to these crises, the environment had become degraded to such an extent that the Cuyahoga River caught fire and the air in major cities was not safe to breathe. In response to this toxic mix of social and environmental ills, many citizens began questioning whether they could trust the government or technology. Fueled by this questioning, a new sense of activism led to (among other things) an environmental movement that helped establish the Environmental Protection Agency (EPA) to clean up our rivers and air. This was a time when books such as Silent Spring (1), The Population Bomb (2), and The Limits to Growth (3) were proclaiming dire consequences for our planet if we didn’t take our impacts on the planet more seriously. It was also a time when environmental activists became very concerned and vocal about the hazards of nuclear weapons and radiation in general. Fears of even a limited nuclear war leading to a “nuclear winter” were prevalent. As nuclear power plants were being proposed, fierce demonstrations took place to try to prevent them from being built and delaying the time line for actually building them to ten or more years. A large segment of society became convinced that virtually any exposure to radiation would cause cancer and that nuclear reactors were a major health hazard.