The controversy is about Facebook's proposal to implement E2EE on Messenger, thus ending Facebook's ability to comply with warrants ordering them to disclose Fa

The controversy is about Facebook's proposal to implement E2EE on Messenger, thus ending Facebook's ability to comply with warrants ordering them to disclose Facebook messages. Due to the lack of E2EE, Facebook can currently detect and report a lot of crime to law enforcement; some of this crime may go unpunished if E2EE is implemented.