There is no such thing as "Pro Abortion"

Dahlia Lithwick of Slate brings up an interesting point in her article about the Supreme Courts new ruling on late-term abortions:

As a matter of law, the majority opinion today should have focused exclusively on what has changed since the high court's 2000 decision in Stenberg v. Carhart. Stenberg struck down a Nebraska ban that was almost identical to the federal ban upheld today. That's why every court to review the ban found the federal law, passed in 2003, unconstitutional. What really changed in the intervening years was the composition of the court: Sandra Day O'Connor, who voted to strike down the ban in 2000, is gone. Samuel Alito, who votes today to uphold it, is here.