The campaign to ban abortion in South Dakota seems to have gained an unlikely ally in the form of a Planned Parenthood doctor who is now offering vocal support of the measure.

Dr. Patti Giebink, now an obstetrician-gynecologist from Chamberlain, appears in a television commercial sponsored by VoteYesForLife.com, which plans to start airing the ad in the next few days.

"I think this is the time to ban abortion on demand in our state. I don't think it's necessary. I think its time is past," she says in the ad that's posted on the group's Internet site....

Leslee Unruh of Sioux Falls, who coordinated the lobbying effort for the bill in the Legislature and manages the Vote Yes campaign, said Giebink's support shows people do change their stance.

"This is an amazing, very courageous step on her part to stand up and take the side of life and the side of yes for life instead of a no for abortion," said Unruh, who once had an abortion. "Obviously, I thought abortion was an option. And so did Patti. But you can change."

Dawn Eden has video of the ad. It is a simple but powerful message -- from a quite reliable source -- that maybe the country should have second thoughts about the acceptance of abortion.