Yes, the business angle. Good call, tessa! One of the disadvantages of our medical system is the fact that insurance is so costly. Companies that used to pay for full family coverage now pay half or a third of the cost - the rest comes out of our paychecks. And companies that didn't pay for employee/family insurance fully, now pay even less. It costs employers tens of thousands of dollars a year per employee with a family for full medical coverage. So, keeping the definition of "family" as narrow as possible is to their advantage. "Cost effective" you know. The result is an unholy alliance between big business and fundamentalist religion, explaining why the Republicans find themselves in bed with people like Falwell and Robertson.