Please explain why this is different from fingerprinting someone.
Fingerprinting good only for identifying an individual and his past presence at a physical location or contact with an object.
DNA goes 100 times farther than that regarding personal information on the individual. The least intrusive aspect of DNA is simple identification of a person as in the manner of finger prints.
Other than identifying me as being at the scene of, or committing a crime, all the other info provided by DNA is none of the government’s damn business and will be used by the government to exercise control over me.