> There must not be a way to backdoor user devices, under any circumstances. One can make an argument that if there is strong evidence that someone is planning

> There must not be a way to backdoor user devices, under any circumstances. One can make an argument that if there is strong evidence that someone is planning to commit an unusually serious crime, e.g. a terrorist attack, then secretly installing surveillance software on their device is warranted. I would also add that this surveillance operation can't be used to collect any other data which is unrelated to the suspected serious crime (like terrorism), and if such data is collected by accident, that it can't be used as evidence in court. (I'm very sure that this is currently perfectly legal in the US, which sounds pretty bad.)