https://www.vice.com/en_us/article/neaadm/barr-says-police-need-backdoors-doesnt-mention-hacking-cellebrite-graykey

On Tuesday, Attorney General William Barr delivered a keynote address in which he resumed the call for companies to find technical solutions to allow law enforcement to access encrypted communications and data.

"By enabling dangerous criminals to cloak their communications and activities behind an essentially impenetrable digital shield, the deployment of warrant-proof encryption is already imposing huge costs on society," Barr said to an audience at the International Conference on Cyber Security in New York. Barr then pointed to several oft-repeated and criticised potential solutions, such as creating a second set of keys that law enforcement could use to access a locked phone.