The danger of Big Brother is not that he knows everything about you, but rather that you know nothing about him. It's the one-way flow of information that Big Brother leverages to undermine any effective opposition, and it's that kind of power that absolutely corrupts.
That being the case, the so-called "lawful access" bill tabled by Vic Toews, that would give police warrantless powers to surveil your internet activity, moves the law in exactly the wrong direction. If society needs something for it's safety it is that government and law enforcement be more transparent; more scrutinized by more people more of the time. Not less.