Here's a link to the actual decision, Varnum v. Brien.
Quote
The County offered five primary interests of society in support of the legislature’s exclusive definition of marriage. The first three interests are broadly related to the advancement of child rearing. Specifically, the objectives centered on promoting procreation, promoting child rearing by a mother and a father within a marriage, and promoting stability in an opposite-sex relationship to raise and nurture children. The fourth interest raised by the County addressed the conservation of state resources, while the final reason concerned the governmental interest in promoting the concept and integrity of the traditional notion of marriage.
Can you say Bull-<cough>? I particularly liked the way the Court framed its approach to the issue:
Quote
Our responsibility, however, is to protect constitutional rights of individuals from legislative enactments that have denied those rights, even when the rights have not yet been broadly accepted, were at one time unimagined, or challenge a deeply ingrained practice or law viewed to be impervious to the passage of time. The framers of the Iowa Constitution knew, as did the drafters of the United States Constitution, that “times can blind us to certain truths and later generations can see that laws once thought necessary and proper in fact serve only to oppress,” and as our constitution “endures, persons in every generation can invoke its principles in their own search for greater freedom” and equality.

A well reasoned argument is like a diamond: impervious to corruption and crystal clear - and infinitely rarer.

Here, as elsewhere, people are outraged at what feels like a rigged game -- an economy that won't respond, a democracy that won't listen, and a financial sector that holds all the cards. - Robert Reich