now we're starting to see the real truth

...behind the doj's over zealous defense of doma...and it ain't pretty.

From the actual brief, it's right there in writing.

CIVIL RIGHTS FOR QUEERS WILL COST TOO MUCH MONEY:

DOMA ensures that evolving understandings of the institution of marriage at the State level do not place greater financial and administrative obligations on federal and state benefits programs. Preserving scarce government resources — and deciding to extend benefits incrementally — are well-recognized legitimate interests under rational-basis review.