As a security concerned British person, this throws multiple red flags to me. 1. A Country that failed to upgrade it's NHS systems from Windows XP after 10+ bi

As a security concerned British person, this throws multiple red flags to me. 1. A Country that failed to upgrade it's NHS systems from Windows XP after 10+ billion pounds of investment and subsequently got hacked, leading to many deaths - scares me. The data they are collecting is very intimate. If it was leaked, somebody could track persons of interest (government officials, politicians, journalists, undercover police, etc), tell whether somebody is having an affair, make correlations between friends groups - tonnes of data. They could potentially figure out where you work, where you go for lunch, who you meet, who you phone - it's just too much. 2. Today it's about catching "known" criminals, tomorrow it's about predicting future criminals and sending them to state "rehabilitation" camps (just look at China), selling you data to the highest bidder (it's happened on the Council level in the past) or some other ridiculous use. Blocking websites on the internet used to be about removing exploitation of young persons, now it's used to block pirating of copyright material. 3. A right to be forgotten - if you've done nothing wrong, you shouldn't be tracked. I can understand the need to hold this sort of data for a short period of time, but after this it should be deleted. I think privacy is a fundamental freedom, along with freedom of speech, freedom to travel, etc. 4. The accuracy of facial detection, even if it's 99.99% for 70 million people, is still 7000 mistakes (at a massive simplification). It's actually worse than that, both the real accuracy of face detection and the error rate for specific people. It's also "easy" to trick. When it works it works well, but what about the person who is incorrectly detained, potentially injured for a crime they never committed? And that's not even taking into consideration that a lot of these face detection algorithms tend to be subtly racist (over trained on locals, badly trained on foreign persons). 5. Lack of oversight for such a powerful technology - to collect data on this magnitude is absolutely insane and needs multiple groups of people to keep it's use in check. Not just government based but also separate non-government groups which receive funding elsewhere. That all said, I can understand the clear benefit - remove the human element from tracking these people. But with any powerful technology we must always ask - at what cost? I think this inflicts too much on a persons basic freedoms.