So...FBI wants extra powers then
So, the FBI boss compares wanting to read any and all correspondence on your device at any time, with being able to tap phones with a warrant. Nothing has been lost then, the FBI is still permitted to tap phone calls with a warrant. This is in fact the FBI wanting extra powers (with a warrant or not) that they currently don't have.
Plus, of course, backdooring people's phones is madness from a security perspective.
Biting the hand that feeds IT
