A friend and I were chatting the other day and an interesting (darkly humorous) scenario came up.

EMP: BAD DAY #1:  A Solar EMP has hit and you feel as well prepared as one can be. You gather your family into the basement where you have accumulated weapons for every member of the family, ammo and reloading supplies to meet any possible need.

Then you realize that all your gun safes have Electronic Locks… non-functional Electronic Locks.

The Librarian