Remote communication other than by courier didn't exist at all prior to the 19th century and the telegraph. That's why it was left out of the construction of the 4th Amendment.
You can make an argument for crimefighting, but then you have to stay within the judicial boundaries: limited access, requiring a warrant, limited use, requirement for basis for suspicion. The crimefighting process is there to produce evidence which is then presented to a court in public.
The problem with the IPbill is that it comes from the military intelligence point of view instead. The process produces intelligence which is then classified and is illegal for the public to see. There are warrants to be issued under the IP bill: it is a criminal offence for the people on whom the warrant is served to "to disclose to any person, without reasonable excuse, the existence or contents
of the warrant." This provision does not come with a time limit. You can be ordered to hack activists or opposition parties or human rights lawyers and not allowed to whistleblow, ever.
There are some extraordinary little subclauses like 154.(9):
"Any conduct which is carried out in accordance with a bulk equipment interference warrant is lawful for all purposes"