Politicians often try to score points by blaming encrypted messaging apps for all the evils of modern society. Government officials call for backdoors in popular end-to-end encrypted apps to "stop terrorism", neglecting the fact that this can't and won't work. Worse than useless, undermining encryption can only expose hundreds of millions of lawful users to hackers and corrupt officials in less fortunate countries – as well as make unchecked mass surveillance possible again. We often get questions from journalists…