Marc A. Thiessen of the American Enterprise Institute writes in the Washington Post about the momentum for the pro-life side in the abortion debate:

How did the pro-life position gain 18 percentage points in just 15 years? For one thing, scientific advances have allowed us to see inside the womb as never before. Once-experimental medical procedures, such as fetal surgery to repair spina bifida, have become increasingly common. And a 1999 photo of baby Samuel Armas, then at 21 weeks gestation, reaching out of his mother’s womb and holding his doctor’s finger touched millions of hearts around the world. People have been able to witness with their own eyes the humanity of the unborn child.

As this window into the womb was opening, the pro-choice movement was busy defending the gruesome practice of “partial birth” abortion. A ban on the practice was upheld by the Supreme Court in 2007. Now, thanks to the people of Nebraska, the national debate will shift to the topic of “fetal pain,” which once again underscores the humanity of the unborn.

As this debate unfolds, science will continue to advance, allowing us to see — and save — babies at earlier and earlier periods of gestation. And the consensus will continue to grow that pre-born babies are indeed human beings, deserving of our love, our compassion and, most important, our protection.