> What is the impact of this? Maybe guilt by association? Imagine going into a business, having some DNA based system identify you, and being denied entry bec

> What is the impact of this? Maybe guilt by association? Imagine going into a business, having some DNA based system identify you, and being denied entry because the majority of your relatives are criminals. Realistically, I'd say the opposite will happen though. Being related to someone wealthy or influential will automatically get you special treatment and you won't even have to ask "do you know who I am?" > but I can’t think of a concrete way the government would be able to abuse this capability to assert power over me I think the war on drugs in the US is a pretty good example. If I say it was used to marginalized and disenfranchise one specific group of people, everyone knows what group I'm talking about, so, IMO, that's a good indication it was intentionally targeted at that group. Now imagine the same thing, but you're in the targeted group and, instead of having the police roaming your neighbourhood, you're simply locked out of all the "opt-in" systems that are necessary to have a decent life; banking, real-estate, licensing, etc.. Maybe you're even prevented from shopping at stores that have reasonable prices and have to overpay for food because you're a "bad person". Opting in to beneficial systems, with less beneficial defaults, is the new way of discriminating IMO.