State governments have formed “intelligence fusion centers” to share information about possible threats, including (particularly with New York State) identity theft, particularly inasmuch as impersonation represents secondary security threats. A huge variety of sources is included, even car rental records (from tourists).
The Washington Post has a story by Robert O’Harrow Jr. on the front page of April 2, 2008, “Centers Tap into Personal Databases: State Groups Were Formed after 9/11,” link here.
One particularly obscure data broker, Entersect, was discussed. The company is so obscure as not to have a usable home page on the Internet now. The name reminds me of the IMS database concept “Intersection data.”
The question remains, could a system be designed to check across many of these databases so that lenders (mortgages, car dealers, banks with business loans) could more reliably identify applicants?