Works fine for me! I have nothing to hide, so they can listen to me any time.
If you have something to hide, legal or not, I want someone able to listen to you and stop you doing something dangerous.
I can't figure out whether or not you are trolling, but this comment is scary and I'll bite. Just because "you have nothing to hide" doesn't mean you should blithely give up privacy like that. There are bits of a person's life that are private, and that anonymous little bureaucrats, marketers, self-important do-gooders or any other form of nosey parker shouldn't be able to just trawl-through and or datamatch on a whim. And, if you really don't care about your privacy at all, feel free to prove it by posting copies of all your bank statements, medical records, family school records and private correspondence for the last five years so we can all take a good look....... after all, everything may be legal, but one of us might spot something "dangerous"
More seriously, there are clearly cases where people need to be put under surveillance. When this happens, there needs to be good reason for the proper agencies to feel there is a real threat, and it needs to be legally authorised, with proper oversight, and safeguards etc. Ideally, the authorities should have to apply to a judge for a warrant. But for the electorate to accept that it's OK for government bodies to drift-net the private lives of the entire population on the off-chance that they might be doing something that an official doesn't approve of is a very, very silly thing to do.
Once it starts where does it stop - and what do you mean by "something legal but dangerous"? Maybe the Ministry of Health can require you to undergo compulsory counselling because your EFTPOS records show you have consumed what an official considers a "dangerous" amount of beer in the last week?