Plus, DNA is much more than fingerprints. It can be used for esxample in to determine paternity, and to find genetic markers for diseases and health risks — something insurance companies would love to get hold of.
If this Obamacare passes this week, the biggest "insurance company" will already have their hands on it. Yet another reason to question this policy; When the government is the insurance company, and the holder of our most intimate personal genetic information, problems will be plentiful.
At the same time there are a vast number of DNA related problems where the number of different genes involved in creating those problems is so great that no one gene can be pinned down as a cause.
The costs could be quite high to track such things down.