The thing is, banning encryption to fight terrorism makes as much difference as banning knifes to fight murder. Encryption is simple enough (in theory at least)

The thing is, banning encryption to fight terrorism makes as much difference as banning knifes to fight murder. Encryption is simple enough (in theory at least) and prevalent enough that banning it will only stop legitimate usage (e.g. personal privacy) without having any real impact on those who want to break the law. Modern steganography techniques make it easy for enterprising individuals to tunnel encrypted data over unencrypted channels; there is just too much randomness in the real world to exploit. Regardless of what delusional politicians want, encryption is here to stay. It's just a matter of how much people are willing to give up to feel safe.