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Facebook turns over mother and daughter’s chat history to police resulting in abortion charges
(www.theverge.com)
This is a most excellent place for technology news and articles.
Well, they sort of have given the option, with WhatsApp. Which has had full e2ee since 2016, using the signal protocol.
Adding default e2ee on messenger is probably a bit trickier, due to the structure (web client, history saved on the server, and so on)