Plutonium can be hazardous, but we've been able to work with it very safely. There is little reason to worry about storing it safely. "During the Manhattan Pro

Plutonium can be hazardous, but we've been able to work with it very safely. There is little reason to worry about storing it safely. "During the Manhattan Project in 1944 and 1945, 26 men accidentally ingested plutonium in quantities that far exceeded what is now considered to be a lethal dose. Since there has been a consistent interest in the health effects of this brand new substance (first discovered by Glenn Seaborg’s team at the University of California in 1940), these men were closely tracked for medical studies. Forty Years Later As of 1987, more than four decades later, only four of the workers had died and only one death was caused by cancer. The expected number of deaths in a random sample of men the age of those in the group is 10. The expected number of deaths from cancer in a similar group is between two and three." https://atomicinsights.com/how-deadly-plutonium/ https://atomicinsights.com/how-deadly-plutonium/ Of course that doesn't count the demon core. https://en.wikipedia.org/wiki/Demon_core https://en.wikipedia.org/wiki/Demon_core