The problem is that _we don't want every crime to be caught or solved_. The worst thing that could happen to freedom is that the system would actually work as

The problem is that _we don't want every crime to be caught or solved_. The worst thing that could happen to freedom is that the system would actually work as advertised. Because then resistance would be impossible. If a government is so powerful they can stop even just 99% of crimes, they are so powerful that people can't rise up against it. At that point it's only a matter of time until authoritarians get elected and get rid of elections. The probability is not 0 which means it'll happen eventually with a probability of 1. We need to be able to resist. Look at how many democracies were created by violent revolutions. How many bad people had to be killed before they stopped trying for a while. How many bad people had to be threatened with being killed before they gave up power "voluntarily". You think the Velvet revolution was peaceful? Imagine you're an asshole who oppressed 10M people for years until they got fed up and 1M of them are now in the square right in front of your eyes, angry and shouting. What do you think is gonna happen if the implied violence materializes? How many cops do you need to stop 1M people and how many of those cops are actually gonna turn their weapons against you too? The real power is always held by men with guns (and these days with drones). Or look at Syria. You think the cunt in charge fled out of goodwill to stop the bloodshed? No, he fled because he didn't wanna end up bleeding out on the pavement and then be hung up at a gas station as a temporary flag of freedom. We need to be able to resist and that includes being able to talk about violence, even promote it when the violence is just (not legally but morally). We need to be able to make people angry, to promote hate against injustice. And we need to be able to organize without the government knowing until it's too late for them. And yes, those abilities will be used by bad people too but that's the price we need to pay.