“In the long run, the most important part of the Supreme Court’s ruling on “partial-birth” abortions may not be Justice Anthony M. Kennedy’s opinion for the majority. It might well be Justice Ruth Bader Ginsburg’s dissent, which attempts, for the first time in the court’s history, to justify the right to abortion squarely in terms of women’s equality rather than privacy,” argues Cass Sunstein in this L.A. Times opinion column.