I personally wouldn't want to put possible key disclosure laws to the test in this situation.
With post mail I'd imagine that scenario is somewhat timing-critical, whereas I'm not sure how feasible it is to delete things if they are in the blockchain (consensus for deletion? How does that work?) and the police seize all the computers in your house.
With post mail I'd imagine that scenario is somewhat timing-critical, whereas I'm not sure how feasible it is to delete things if they are in the blockchain (consensus for deletion? How does that work?) and the police seize all the computers in your house.