[chiph]

For the average person - not much impact. However, once this data exists in a central, searchable format, you can bet that it will get used for purposes other than national defense.

It'll start off with being used to locate missing & kidnapped children. Then it'll be used to locate spouses who haven't been making their child support payments. Then it'll be used to locate tax cheats (what can be more un-American than not paying your taxes?) And then people for whom there are outstanding warrants - both felonies and misdemeanors. Like unpaid traffic tickets.