Kevin Sack writes for The New York Times, “Over the last decade, ultrasound has quietly become a new front in the grinding state-by-state battle over abortion. With backing from anti-abortion groups, which argue that sonograms can help persuade women to preserve pregnancies, 20 states have enacted laws that encourage or require the use of ultrasound. Alabama is one of three states, along with Louisiana and Mississippi, that require abortion providers to conduct an ultrasound and offer women a chance to peer inside the womb.”