WICHITA, Kan. —'Can I do this?' his mother agonized, knowing one of her newborns would not live. But for 43 hours, he was hers to cherish. She wanted to honor her son, to celebrate his life, however short. That's why she had refused an abortion, even after doctors told her that her little boy would be born without a brain. Now he was here, squirming in his blankets... The specialists she consulted offered Danielle a "selective reduction": They could abort the malformed twin. That might give her a better chance of carrying the healthy baby to term, but there was...