Google is offering an innovative messaging product called Allo to compete with other mobile messaging apps. It has features like suggesting responses to messages from your friends, to save you time. But to do this, it needs access to all of the message content. On the other hand, you will have an option to turn on end-to-end encryption, which uses the secure SIGNAL protocol... On the other hand, if you do turn on the end-to-end encryption feature, you won't get the "sizzle" features like the message reply suggestions. So, let's just be clear about privacy versus convenience.