Yep, a modern nuclear bomb takes a very coordinated sequence to actually have the confinement needed to get good utilization of the fissile fuel (i.e., be a nuc

Yep, a modern nuclear bomb takes a very coordinated sequence to actually have the confinement needed to get good utilization of the fissile fuel (i.e., be a nuclear-driven explosion), otherwise they just fly apart before any significant fission/fusion can occur. The fuel used for a nuclear weapon is also basically radiologically inert by necessity so if it does explode conventionally there is not a significant release of radiation. It's pretty toxic chemically, but there's not a lot of it so it's not nearly as bad the fallout that would precipitate from a nuclear explosion.