Whether it's technology, economics, or politics, clearly the state of the art is deficient because we currently have persistent deficiencies.
[0] https://en.m.wikipedia.org/wiki/Hanford_Site
Digging a shaft half a kilometer into bedrock and sealing it is not state of the art.
Whether it's technology, economics, or politics, clearly the state of the art is deficient because we currently have persistent deficiencies.
[0] https://en.m.wikipedia.org/wiki/Hanford_Site