Federal non-Social Security surpluses are eliminated through 2010, and unified deficits emerge in 2019.
Unfiled deficits will never emerge for Federal non-Social Security surpluses. 
mnli hypothesis: Unfiled deficits will never emerge for Federal non-Social Security surpluses.  premise: Federal non-Social Security surpluses are eliminated through 2010, and unified deficits emerge in 2019.