I wrote last week about the very real threat of losing all public access to the Social Security Death Master File, or SSDI. This would be a HUGE loss to anyone researching individuals in the U.S., whether you are researching ancestors, relatives, descendants of recovered military MIAs, missing heirs, etc. That's on top of the enormous threat to identity theft if this public database is no longer freely available to the many small and medium-sized businesses that use the death master file to verify an individual's identity in an effort to prevent fraud.