In the last week two very different sources seem to be saying the same thing. Small restrictions on abortion at the state level have significantly reduced the number of abortions in this country. In an article at the Heritage Foundation site, University of Alabama political scientist Michael New has addressed one problem in arguments for this conclusion. It's unclear if laws restricting abortion cause a drop in abortions or an underlying factor explains both the drop in abortions and the election of those who would pass such restrictions. In this case that underlying factor might be a value change in the populace. New's study compares laws that pass (and thus reflect the value change) but get overturned by courts (which don't reflect value changes) with laws that pass and remain on the books. It turns out that, even taking into account value change, there is enough of a decrease in the number of abortions to justify thinking that abortion restrictions do reduce the number of abortions.
Dawn Johnsen, law professor at Indiana University and former lawyer for the Clinton Administration official and NARAL, complains at Slate about exactly this effect. She thinks the senators have focused on entirely the wrong question at the Alito hearings. We shouldn't care so much about whether he would vote to overturn Roe outright. What we should care about is whether he will continue to allow such ridiculous restrictions as Sandra Day O'Connor has allowed in the past, e.g. allowing parents to have some role in the weighty moral decisions of their morally immature children, not allowing people to make such a grave choice in the spur of the moment except in emergency situations, ensuring that women who seek abortion have been made fully aware of all the options, and restricting a procedure that my pro-choice Norwegian friend (who is extremely liberal on any ethical issue you can name) calls the most vile procedure he's ever heard of.