It can't be totally stopped. But plenty of encryption-enabled apps can be subverted. I think it should be treated as a given that 1. a sufficiently clever a

It can't be totally stopped. But plenty of encryption-enabled apps can be subverted. I think it should be treated as a given that 1. a sufficiently clever and malicious person can implement broken encryption in a virtually-undetectable, and perhaps even deniable way 2. the government has the capability of exerting enormous pressure on app manufacturers and service providers Given 1 & 2, it's reasonable to assume that an unknown and possibly great number of encrypted chat and encrypted email and encrypted etc are all subverted.