In Chapter 3 of Saving Leonardo, Nancy Pearcey anticipates the change in rhetoric on display from pro-abortion advocates: Namely, an acknowledgement that, biologically, life does begin at conception. They’ve had to admit this given the advancement of ultrasound technology which lets us see inside the womb.
How, then, to justify abortion? Either deny that life = personhood (and define personhood as having certain mental capacities), or simply say that some lives are more important than others. The latter strikes me as a more honest representation of those who support abortion rights. John Piper writes: