It is not just about phones
They will want WhatsApp to provide them a way to view messages for certain "persons of interest" - maybe just to make it easy require them to keep six months' worth of records. They will want access to Amazon storage, to location information encoded in photos uploaded to Facebook, and on and on.
This is what they've been talking about for some time with their comments about how encryption is impeding their investigation. They chose this high profile terrorist incident, involving the world's most valuable company, for a very good reason. They wanted to set a precedent, despite what they claim. It is obvious to anyone with half a brain.
Biting the hand that feeds IT
