True....but we only detonated one that was 15 MT and that was by accident. Right?
We set some serious big ones off under ground. There is lots they will not tell you. Variable yield and new technology has done amazing things for N weps technology.
The actual yield was higher than estimated because there was a cross-section in one of the components (lithium or deuterium, I can’t recall which) which either was unknown at the time or had a larger value than measured (estimated). The fallout blanket contaminated the one Japanese fishing vessel which resulted a few fatalities. The blast also trapped some of our people in an observation bunker in a nearby island.