The US Attorney General, along with officials from the UK and Australia, is asking Facebook to halt its plans for end-to-end encryption across its messaging services, citing concerns that it will prevent law enforcement from accessing illegal content. The letter acknowledges that Facebook currently captures 99% of child exploitation and terrorism-related content through its own systems, but argues that this will no longer be possible if end-to-end encryption is implemented. Facebook has stated that it strongly opposes government attempts to build backdoors into its encryption. The company believes that end-to-end encryption is necessary to protect users' privacy, while law enforcement agencies are concerned that it will hinder their ability to investigate crimes.