BOSTON -- Opponents saw it as a huge blow to the American family. Supporters looked on it as a moment of liberation. The first legal gay marriages in Massachusetts were a pivotal moment in America's culture wars. A year later, the legacy is mixed -- they remain legal here, and civil unions have been legalized in neighboring Connecticut, but a dozen states were propelled to prohibit same-sex weddings. In the past year, more than 6,000 same-sex couples have tied the knot, many rushing to exchange vows in the days and weeks that followed the May 17 start to the weddings....