The War Over Fetal RightsBy Debra Rosenberg, Newsweek It was nearly Valentine's Day, 1992, when Tracy Marciniak's estranged husband, Glenndale Black, showed up at her Wisconsin apartment. A 28-year-old mother of two, Marciniak was expecting another baby in just five days. But the night was hardly romantic. Within hours, the two argued and Black punched her in the stomach."IT FELT LIKE IT had gone all the way through me," says Marciniak, now 39. The baby, whom she'd already named Zachariah, had seemed fine on a prenatal visit just the day before, she says. But when she arrived...