"I have difficulty in concluding, as the Court does, that the right of "privacy" is involved in this case. Texas, by the statute here challenged, bars the performance of a medical abortion by a licensed physician on a plaintiff such as Roe. A transaction resulting in an operation such as this is not "private" in the ordinary usage of that word. Nor is the "privacy" that the Court finds here even a distant relative of the freedom from searches and seizures protected by the Fourth Amendment to the Constitution, which the Court has referred to as embodying a right to privacy. Katz v. United States, 389 U.S. 347 (1967)."