Secrecy was a whole field in itself. Perhaps our whole miasmic hysteria about secrecy for the last twenty years had its birth during this period. Our obsession with secrecy had a perfectly legitimate beginning in a fear that knowledge of troopship sailings would and often did attract the wolf packs of submarines. But from there it got out of hand until finally facts available in any library in the world came to be carefully guarded secrets, and the most carefully guarded secrets were known by everyone.
