BOSTON -- Launching the next battle in the legal war over gay marriage, eight couples -- including two from Rhode Island -- and 12 municipal clerks said today they will file lawsuits challenging the 1913 law used to block out-of-state same-sex couples from marrying in Massachusetts. The groups said they would file two lawsuits in Suffolk Superior Court tomorrow, claiming the law, which bars couples who resident outside of Massachusetts from marrying if their marriages would be illegal in their home states, is unconstitutional and that it is discriminatory to enforce it against same-sex couples. Gov. Mitt Romney and Attorney...