For others who were also interested, the "over 1,000 federal marriage benefits" figure comes from a United States General Accounting Office report to Congress,

For others who were also interested, the "over 1,000 federal marriage benefits" figure comes from a United States General Accounting Office report to Congress, updated as of 2004. http://www.gao.gov/new.items/d04353r.pdf http://www.gao.gov/new.items/d04353r.pdf