's home by way of sense-enhancing technology not in general public use arises from notions of privacy rooted in Fourth Amendment jurisprudence, see Kyllo v. United States, 533 U.S. 27, 34, 121 S.Ct. 2038, 150 L.Ed.2d 94 (2001), while the right of a woman, with certain exceptions, to pursue an abortio