The Science of Abortion: When Does Life Begin?

In a recent interview, Senator Marco Rubio (R-FL) declared it is a scientific fact that “human life begins at conception.” He also said that “leaders on the left” who “wag their fingers” about the “settled science” of global warming are hypocrites when it comes to science, and someone should ask them if they accept the “consensus of scientists that says that human life begins at conception.”

Going further, the senator added, “I’d like to see someone ask that question. It’s never asked. And that’s not even a debatable thing, we...