Re: He may not think that end state is "sustainable"
True. TPTB want you to forget that the time period in which it's been possible for them to monitor your private communications is incredibly short in historic terms; an abberation due in large part to the primitive nature and "wild west" development of telecommunications from the telegraph down (a century or so). Mass surveillance even shorter (a decade or two). It's not and should not be the norm.
Considering the actual risk from terrorists, vs. all the other crimes that are committed, you know the proponent is being disingenious when they use the "need this law/power/technology to stop terrorists" argument. At least use a real problem like domestic violence or something.