If the Paris attackers weren't using crypto, the next ones will, and so should you

Lots of law enforcement agencies hate crypto, because the technology that helps us protect our communications from criminals and griefers and stalkers and spies also helps criminals keep secrets from cops. With each terrorist attack there's a fresh round of doom-talk from spooks and cops about the criminals "going dark" -- as though the present situation, in which the names and personal information of everyone who talks to everyone else, all the time, where they are then they talk, where they go and who they talk to next, is somehow less surveillant than the past, when cops could sometimes use analog tape-recorders to wiretap the very few conversations that took place on landlines. (more")