According to a report by the Information Commisioner's Office the midwife concerned had been asked to produce the two diaries from storage at her home address for audit purposes.
Some people will certainly continue to find them ideal for their purposes, and they are likely to become more broadly appealing as battery technologies evolve to provide greater storage capacities.
According to a swirl of rumour filtering out of Libya, the thousands of miles of underground tunnelling and storage dumps are more elaborate than would be needed simply to carry water, and might be intended for more sinister purposes.