There’s no back door that only works for good guys

My latest Guardian column, Crypto wars redux: why the FBI's desire to unlock your private life must be resisted, explains why the US government's push to mandate insecure back-doors in all our devices is such a terrible idea -- the antithesis of "cyber-security."

As outgoing Attorney General Eric Holder invokes child kidnappers and terrorists, it's like a time-warp to the crypto-wars of the early 1990s, when the NSA tried to keep privacy technology out of civilian hands by classing it as a mun...