Proponents of same-sex marriage have introduced an initiative that would put a whole new twist on traditional unions between men and women: It would require heterosexual couples to have kids within three years or else have their marriages annulled... Initiative 957 was filed by the Washington Defense of Marriage Alliance, which was formed last summer after the State Supreme Court upheld Washington's ban on same-sex marriage. In that 5-4 ruling, the court found that state lawmakers were justified in passing the 1998 Defense of Marriage Act, which restricts marriage to unions between a man and a woman. Under I-957, marriage...