DNA is basically your identity. Your health, your ancestry, everything. But its also, not just you. Its your family, past and future. If we start talking the DNA of the dead, and Im pretty sure we already do as the dead have no rights, then at some point someone is going to challenge the right to privacy of the living in this area. After all, we're all going to die sooner or later, so why not get that sweet, sweet data just now?

Basic harms would be health insurance. If a provider has your DNA, it might show that your great, great granny got cancer. And they use that data to increase your rates. Or worse, deny your treatment, because your granny had the same treatment, and it didnt work.

What about work? Your ancestor has his history of health issues, and so refuses to hire you because you might get that too.

DNA from you or your relatives can also be use to track you, identify you, connect you to certain locations.

But heres the big one. Cancer. Your DNA holds the key to curing cancer. Some company has your DNA, and using your DNA creates a cure for Cancer. They then make trillions of money off of it. And you get fuck all, even though it your DNA. You dont even get to say that it should be given away. Its theirs now.

Also, once a company has your DNA. They have it forever. That you and your family, easily profiled, tracked, and whatever else until the end of time. What if, at some point, some targets you or a descendant with a DNA targeted virus? Science fiction now, but maybe not in the future.

Basically, the damage that can be done is limitless.