Issue of the Month: Homosexual Marriage?

Earlier this week I posed a private query to a few friends and "intellectuals":

Give me a secular defense of traditional (heterosexual) marriage.

I've received a few comments, but I don't want to post until others have formulated their final thoughts. I hope to have everything posted by Thanksgiving.

Until then, I found this article while perusing IntellectualConservative.com.

Also, feel free to post a comment if you have an opinion from either side of the issue. Please keep the explanations logical and free of emotion, propaganda and other spin.