[marcosdumay]

Hum, no, math and chemistry are simply different on that.

Math can not harm anybody because math isn't real, it's speech (yes, maybe except for psychological harm). Chemistry is quite real.

Anyway, I don't see merit on the author's argument. It's true, but useless. The discussion is about protected speech and evidence gathering, nobody is claiming cryptography directly harms people.

[theandrewbailey]

I can assure you that math is most certainly real. Just because you can't hit a head with it doesn't mean something isn't real.