ACLU Vs. The Matrix
"government sources report that it includes names and address of family members, property ownership, marine vessels, bankrupcies, liens and judgments, voter registrations, and criminal offender information"
To the best of my knowledge, all of this is public information (with the possible exception of marine vessels). Therefore, the scope of this project does not cross the line of illegal search and seizure, and thus should be acceptable. The article does claim that the hope is to also include "commercially available data". Without mentioning what sort of data this is, it is difficult for me to feel emotional or concerned about the program, particularly in light of the potential successes of Able Danger.
In general, I approach the subject with what I would consider a healthy optimism. In it's current form, the project appears legitimate and constitutional. However, the concept of data-mining, much like the recent fiasco over wiretaps, does have the potential for abuse.
For more, see: The Grich and View From Vernon Hill.
Cross-posted at 123Beta