He's arguing categorically against end-to-end encryption. All encryption, according to the FBI, must be negotiated through centralized points that can be serve

He's arguing categorically against end-to-end encryption. All encryption, according to the FBI, must be negotiated through centralized points that can be served with a warrant and made to MITM the communications. It's not even clear that's the extent of what they want. They probably also want the communications to always be MITMed by the centralized nodes, so that warrants can request historical communications dating back to some retention limit.