You wildly overestimate the danger nuclear waste represents.
First, transportation is done in small amounts at a time, completely encased in concrete and steel, and is of no risk of exploding: the only danger would be spillovers, which would call for expensive cleaning operations.
Next, storage. The whole waste produced by 60 years of nuclear waste in France amounts to only a few swimming pools of dangerous material. If this material was actually fully useless, we could ditch it in geological layers underground where it would become soon unreachable and dispersed, posing no discernable danger for the upcoming few billion years.
Furthermore, the only reason we don’t ditch this nuclear waste right now is that this material can still be useful for plenty of uses that are not yet economically viable, but could be in the long term, such as energy generation with low-yield reactors.