The New York Times has just published what could prove to be a debate-changing article that explores the science behind the so-called “morning after pill” and shows — contrary to what many or even most people think — that the pill does not induce abortion, but instead delays ovulation. Take a look:

Based on the belief that a fertilized egg is a person, some religious groups and conservative politicians say disrupting a fertilized egg’s ability to attach to the uterus is abortion, “the moral equivalent of homicide,” as Dr. Donna Harrison, who directs research for the American Association of Pro-life Obstetricians and Gynecologists, put it. Mitt Romney recently called emergency contraceptives “abortive pills.” And two former Republican presidential candidates, Newt Gingrich and Rick Santorum, have made similar statements.

But an examination by The New York Times has found that the federally approved labels and medical Web sites do not reflect what the science shows. Studies have not established that emergency contraceptive pills prevent fertilized eggs from implanting in the womb, leading scientists say. Rather, the pills delay ovulation, the release of eggs from ovaries that occurs before eggs are fertilized, and some pills also thicken cervical mucus so sperm have trouble swimming.

Fascinating and important stuff, yes, but is anyone else wondering why it took so long to figure this out?