ANTHONY KENNEDY, in his majority ruling legalising same-sex marriage nationwide, tried to allay the concern that polygamy would be next. John Roberts, in his dissent, said he couldn't see a principled way of opening the door to same-sex couples without also letting polygamists through. Who's right? Is legal polygamy next? Should it be?
Democracy in America | Marriage and polygamy
Three's company, too
Liberal arguments against polygamy helped the cause of gay marriage, but don't survive critical scrutiny
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