An ironically misguided petition
An ironically misguided petition asks the US government to require
communication platforms to encrypt all private messages.
It would sure be wise for users to encrypt those messages. But that
won't be secure if the platform sets up the encryption and the
decryption. If you do that with software that the platform provides,
the platform could put in a back door to bypass it, making it
ineffective for security against snooping by that platform.
If you want encryption to provide real security, install the GNU
Privacy Guard and use it -- to encrypt a message before you send it,
and to decrypt a messafe after you receive it.