"“We argue that heterosexual marriage must be deliberately fostered because it involves much more than copulation,” offered Senator Rick Santorum"

He admitted that gay marriage was not really a threat to heterosexual relations -- but that was not the point.

“People will continue to hook up,” Santorum acknowledged, but at a high cost to society. “Will heterosexuals continue to, you know, copulate? Sure. But will they build families?”

http://www.prospect.org/web/page.ww?section=root&name=ViewWeb&articleId=8142